Accounts6

ActivationEvents3

Activations12

Analytics13

AuditLogs4

Authentication8

AutomatedEmailEventLogs3

AutomatedEmails6

BillingAddresses3

CreditCards1

CustomAttributes5

EntitlementSets9

FeatureFlags5

Features5

Invoices2

Licenses24

LicenseTemplates5

MaintenancePolicies6

OidcConfigurations4

OrganizationActivations2

OrganizationLicenses4

OrganizationProducts2

OrganizationReleases2

Organizations5

OrganizationSamlConfigurations4

OrganizationUserGroups5

OrganizationUsers5

PersonalAccessTokens6

Plans2

Products7

ProductVersions5

Profile15

ReleaseChannels5

ReleaseDownloadEvents3

ReleaseFiles4

ReleasePlatforms5

Releases11

ResellerActivations3

ResellerLicenses8

ResellerOrganizations5

Resellers5

ResellerUsers6

SamlConfigurations5

Segments5

SendingDomains9

Tags5

TeamMembers12

TrialActivations9

TrialPolicies5

Users10

WebhookEventLogs3

Webhooks7

SendingDomains

Create a sending domain

Changed on Aug 6, 2026

Creates a new sending domain.

post/v3/sending-domains

Request

Base URL
https://api.cryptlex.com
URL
https://api.cryptlex.com/v3/sending-domains
Auth
HTTP bearer

Request body

domainstring required

The domain you are sending from.

allowedFromEmailsstring[] nullable

List of email addresses to verify for this sending domain.

Response

Created

idstring required

createdAtstring date-time required

updatedAtstring date-time required

domainstring required

dkimHoststring required

dkimTextValuestring required

dkimVerifiedboolean required

returnPathDomainstring required

returnPathDomainCnameValuestring required

returnPathDomainVerifiedboolean required

Changes

Aug 6, 2026ec1259c12475 Revision changes
- breaking
  added the new required request property
- breaking
  the request's body type changed from no type to object
- breaking
  the response property's minLength was decreased from 1 to 0 for the response status
- breaking
  the response property's minLength was decreased from 1 to 0 for the response status
- breaking
  the response property's minLength was decreased from 1 to 0 for the response status
- breaking
  the response property's minLength was decreased from 1 to 0 for the response status
- breaking
  the response property's minLength was decreased from 1 to 0 for the response status
- breaking
  the response property's minLength was decreased from 1 to 0 for the response status
- warning
  removed subschema #2 from the request body allOf list
- info
  added the new optional request property
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  the response property became required for the status
- info
  added the required property to the response with the status
Jul 29, 202468856b660d76 Revision changes
- breaking
  request body became required
- breaking
  removed the media type application/*+json from the request body
- breaking
  removed the media type text/json from the request body
- breaking
  the request property type changed from no type to object
- breaking
  removed the media type text/json for the response with the status
- warning
  deleted the header request parameter Authorization
- info
  api operation id post/v3/sending-domains removed and replaced with CreateSendingDomain
- info
  the endpoint scheme security JWT was added to the API

Operation history

Create a sending domain

Request

Request body

Response 201Created

Changes

Response