Email

Resend an email

Sends a failed, unknown or sent email again as a new send (resend_of set) with the same content and files; it counts toward today's cap. An email that failed before it was sent (template, recipients or attachments) or whose content was not kept (request logging off) answers 409 email_not_resendable; a file that is no longer hosted 409 email_file_expired.

post/v1/email-sends/{send_id}/resend

Request

  • Base URL: https://api-eu.dynamicdocumentapi.com
  • URL: https://api-eu.dynamicdocumentapi.com/v1/email-sends/{send_id}/resend
  • Auth: one of:
    • HTTP bearer
    • API key in header X-API-Key

Path parameters

send_idstring required

Email send id (ems_…).

Headers

Idempotency-Keystring

Replays the stored response for 24 h; a different body with the same key → 422.

Response

attemptsinteger required
batch_idstring nullable required
bcc_countinteger required
cc_countinteger required
connection_idstring required
created_atstring date-time required
idstring required
mode'live' | 'sandbox' | 'redirect' | 'skip' required

live; for test renders the connection's test_mode (sandbox, redirect, skip); redirect for a rule test.

object'email_send' required
provider'brevo' | 'smtp' | 'postmark' | 'resend' | 'ses' | 'graph' required
provider_message_idstring nullable required

The provider's id of the message; for SMTP the Message-ID we set. Microsoft 365 (graph) returns none.

render_idstring required
resend_ofstring nullable required

The send this one repeats (ems_…).

rule_idstring required
sandboxboolean required

Sent with Brevo's sandbox header: nothing is delivered.

sent_atstring date-time nullable required
skip_reason'condition_false' | 'test_mode' nullable required
status'pending' | 'sending' | 'retrying' | 'sent' | 'sandboxed' | 'skipped' | 'failed' | 'unknown' | 'canceled' required

unknown: the provider may have delivered it (e.g. a timeout after sending); it is never retried automatically: check the provider's logs (the message carries X-Dda-Send-Id) before resending.

subjectstring nullable required
template_idstring nullable required
testboolean required
tostring[] required

Example response

{
  "attachments": [
    {
      "bytes": 48213,
      "file_id": "file_01J9ZM1X3F7R8K2C4V6B8N0P2R",
      "filename": "R-2026-0042.pdf"
    }
  ],
  "connection_id": "emc_01J9ZK3M7Q8V5W2X4Y6Z8A0B1F",
  "error": {
    "code": "email_daily_cap_reached"
  },
  "id": "ems_01J9ZM1X3F7R8K2C4V6B8N0P2T",
  "render_id": "rnd_01J9ZM1X3F7R8K2C4V6B8N0P2Q",
  "rule_id": "emr_01J9ZK3M7Q8V5W2X4Y6Z8A0B1E",
  "template_id": "tpl_01J9ZK3M7Q8V5W2X4Y6Z8A0B1C"
}

Changes

No recorded changes to this operation across all 2 revisions of this API.