Emails

Send multiple emails

Send up to 100 emails in a single request. Useful for sending personalized emails to multiple recipients efficiently.

Each email in the batch can have different content and recipients. Failed emails don't affect other emails in the batch.

Idempotency: Supports Idempotency-Key header for safe retries.

post/emails/batch

Headers

Idempotency-Keystring

Unique key for idempotent requests. If a request with this key was already processed, the cached response is returned. Keys expire after 24 hours.

Request body

fromstring required

Sender email for all messages

Example request

{
  "emails": [
    {
      "metadata": {
        "user_id": "usr_123456",
        "order_id": "ord_789012",
        "campaign": "welcome_series"
      }
    }
  ]
}

Response

Batch accepted

successtrue required

Example response

{
  "data": {
    "total": 10,
    "accepted": 9,
    "failed": 1
  },
  "meta": {
    "requestId": "req_V1StGXR8_Z5jdHi6"
  }
}

Changes

Changed in 10 of the 49 revisions of this API.328515

Feb 18, 2026e38e03901deb3See the full diff
- ●
  the optional response header X-RateLimit-Limit removed for the status 429
  optional-response-header-removed
- ●
  the optional response header X-RateLimit-Remaining removed for the status 429
  optional-response-header-removed
- ●
  the optional response header X-RateLimit-Reset removed for the status 429
  optional-response-header-removed
Feb 5, 202637bce0c9a4d766See the full diff
- ●
  added the new infrastructure_error enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new infrastructure_error enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new infrastructure_error enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new infrastructure_error enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new infrastructure_error enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new infrastructure_error enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ○
  removed the postal_error enum value from the error/code response property for the response status 400
  response-property-enum-value-removed
- ○
  removed the postal_error enum value from the error/code response property for the response status 401
  response-property-enum-value-removed
- ○
  removed the postal_error enum value from the error/code response property for the response status 402
  response-property-enum-value-removed
- ○
  removed the postal_error enum value from the error/code response property for the response status 409
  response-property-enum-value-removed
- ○
  removed the postal_error enum value from the error/code response property for the response status 429
  response-property-enum-value-removed
- ○
  removed the postal_error enum value from the error/code response property for the response status 500
  response-property-enum-value-removed
Feb 4, 20264f8eeb0b9933276See the full diff
- ●
  added the new already_exists enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new already_exists enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new already_exists enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new already_exists enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new already_exists enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new already_exists enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new attachment_too_large enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new attachment_too_large enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new attachment_too_large enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new attachment_too_large enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new attachment_too_large enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new attachment_too_large enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new authentication_required enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new authentication_required enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new authentication_required enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new authentication_required enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new authentication_required enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new authentication_required enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new billing_error enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new billing_error enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new billing_error enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new billing_error enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new billing_error enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new billing_error enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new billing_not_configured enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new billing_not_configured enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new billing_not_configured enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new billing_not_configured enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new billing_not_configured enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new billing_not_configured enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new credential_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new credential_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new credential_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new credential_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new credential_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new credential_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new credential_on_hold enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new credential_on_hold enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new credential_on_hold enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new credential_on_hold enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new credential_on_hold enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new credential_on_hold enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new credential_revoked enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new credential_revoked enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new credential_revoked enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new credential_revoked enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new credential_revoked enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new credential_revoked enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new delivery_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new delivery_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new delivery_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new delivery_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new delivery_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new delivery_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new domain_already_exists enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new domain_already_exists enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new domain_already_exists enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new domain_already_exists enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new domain_already_exists enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new domain_already_exists enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new domain_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new domain_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new domain_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new domain_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new domain_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new domain_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new domain_not_verified enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new domain_not_verified enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new domain_not_verified enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new domain_not_verified enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new domain_not_verified enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new domain_not_verified enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new email_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new email_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new email_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new email_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new email_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new email_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new external_id_already_exists enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new external_id_already_exists enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new external_id_already_exists enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new external_id_already_exists enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new external_id_already_exists enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new external_id_already_exists enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new forbidden enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new forbidden enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new forbidden enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new forbidden enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new forbidden enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new forbidden enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new idempotency_conflict enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new idempotency_conflict enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new idempotency_conflict enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new idempotency_conflict enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new idempotency_conflict enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new idempotency_conflict enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new insufficient_balance enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new insufficient_balance enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new insufficient_balance enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new insufficient_balance enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new insufficient_balance enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new insufficient_balance enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new internal_error enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new internal_error enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new internal_error enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new internal_error enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new internal_error enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new internal_error enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new invalid_api_key enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new invalid_api_key enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new invalid_api_key enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new invalid_api_key enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new invalid_api_key enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new invalid_api_key enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new invalid_email_address enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new invalid_email_address enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new invalid_email_address enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new invalid_email_address enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new invalid_email_address enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new invalid_email_address enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new invalid_raw_message enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new invalid_raw_message enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new invalid_raw_message enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new invalid_raw_message enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new invalid_raw_message enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new invalid_raw_message enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new invalid_request enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new invalid_request enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new invalid_request enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new invalid_request enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new invalid_request enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new invalid_request enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new ip_not_allowed enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new ip_not_allowed enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new ip_not_allowed enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new ip_not_allowed enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new ip_not_allowed enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new ip_not_allowed enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new message_too_large enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new message_too_large enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new message_too_large enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new message_too_large enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new message_too_large enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new message_too_large enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new metadata_key_invalid enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new metadata_key_invalid enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new metadata_key_invalid enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new metadata_key_invalid enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new metadata_key_invalid enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new metadata_key_invalid enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new metadata_too_large enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new metadata_too_large enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new metadata_too_large enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new metadata_too_large enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new metadata_too_large enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new metadata_too_large enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new metadata_value_invalid enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new metadata_value_invalid enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new metadata_value_invalid enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new metadata_value_invalid enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new metadata_value_invalid enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new metadata_value_invalid enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new missing_field enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new missing_field enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new missing_field enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new missing_field enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new missing_field enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new missing_field enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new missing_scope enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new missing_scope enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new missing_scope enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new missing_scope enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new missing_scope enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new missing_scope enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new payload_too_large enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new payload_too_large enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new payload_too_large enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new payload_too_large enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new payload_too_large enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new payload_too_large enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new payment_required enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new payment_required enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new payment_required enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new payment_required enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new payment_required enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new payment_required enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new postal_error enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new postal_error enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new postal_error enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new postal_error enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new postal_error enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new postal_error enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new rate_limit_exceeded enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new rate_limit_exceeded enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new rate_limit_exceeded enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new rate_limit_exceeded enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new rate_limit_exceeded enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new rate_limit_exceeded enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new send_limit_exceeded enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new send_limit_exceeded enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new send_limit_exceeded enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new send_limit_exceeded enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new send_limit_exceeded enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new send_limit_exceeded enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new server_suspended enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new server_suspended enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new server_suspended enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new server_suspended enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new server_suspended enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new server_suspended enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new service_unavailable enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new service_unavailable enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new service_unavailable enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new service_unavailable enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new service_unavailable enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new service_unavailable enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new suppressed_recipient enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new suppressed_recipient enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new suppressed_recipient enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new suppressed_recipient enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new suppressed_recipient enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new suppressed_recipient enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new suppression_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new suppression_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new suppression_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new suppression_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new suppression_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new suppression_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new tenant_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new tenant_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new tenant_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new tenant_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new tenant_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new tenant_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new too_many_attachments enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new too_many_attachments enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new too_many_attachments enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new too_many_attachments enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new too_many_attachments enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new too_many_attachments enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new too_many_recipients enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new too_many_recipients enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new too_many_recipients enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new too_many_recipients enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new too_many_recipients enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new too_many_recipients enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new unauthenticated_from_address enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new unauthenticated_from_address enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new unauthenticated_from_address enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new unauthenticated_from_address enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new unauthenticated_from_address enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new unauthenticated_from_address enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new unprocessable_entity enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new unprocessable_entity enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new unprocessable_entity enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new unprocessable_entity enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new unprocessable_entity enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new unprocessable_entity enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new validation_error enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new validation_error enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new validation_error enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new validation_error enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new validation_error enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new validation_error enum value to the error/code response property for the response status 500
  response-property-enum-value-added
- ●
  added the new webhook_not_found enum value to the error/code response property for the response status 400
  response-property-enum-value-added
- ●
  added the new webhook_not_found enum value to the error/code response property for the response status 401
  response-property-enum-value-added
- ●
  added the new webhook_not_found enum value to the error/code response property for the response status 402
  response-property-enum-value-added
- ●
  added the new webhook_not_found enum value to the error/code response property for the response status 409
  response-property-enum-value-added
- ●
  added the new webhook_not_found enum value to the error/code response property for the response status 429
  response-property-enum-value-added
- ●
  added the new webhook_not_found enum value to the error/code response property for the response status 500
  response-property-enum-value-added
Feb 2, 202613bda63d06ce1See the full diff
- ▲
  removed the required property data/messages/additionalProperties/token from the response with the 200 status
  response-required-property-removed
This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Jan 30, 202665d92724dca21See the full diff
- ○
  added the required property data/messages/additionalProperties/token to the response with the 200 status
  response-required-property-added
This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Jan 30, 202639b91ffd46b61See the full diff
- ▲
  removed the required property data/messages/additionalProperties/token from the response with the 200 status
  response-required-property-removed
This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Jan 30, 202665d92724dca21See the full diff
- ○
  added the required property data/messages/additionalProperties/token to the response with the 200 status
  response-required-property-added
This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Jan 30, 2026bf0351a8fa1d1See the full diff
- ▲
  removed the required property data/messages/additionalProperties/token from the response with the 200 status
  response-required-property-removed
This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Jan 23, 2026c7a958bca7916See the full diff
- ○
  added the optional property error/hint to the response with the 400 status
  response-optional-property-added
- ○
  added the optional property error/hint to the response with the 401 status
  response-optional-property-added
- ○
  added the optional property error/hint to the response with the 402 status
  response-optional-property-added
- ○
  added the optional property error/hint to the response with the 409 status
  response-optional-property-added
- ○
  added the optional property error/hint to the response with the 429 status
  response-optional-property-added
- ○
  added the optional property error/hint to the response with the 500 status
  response-optional-property-added
Jan 21, 202634d225476c981See the full diff
- ○
  added the optional property data/sandbox to the response with the 200 status
  response-optional-property-added

Full history