| Name | Type | Description | Notes |
|---|---|---|---|
| type | String | The channel type. | [default to 'mailgun'] |
| integrationId | String | The ID of the integration to link. Must match the provided type. | |
| primary | Boolean | Flag indicating whether the client will become the primary for the target conversation once linking is complete. | [optional] [default to true] |
| address | String | The user’s email address. | |
| subject | String | May be specified to set the subject for the outgoing email. | [optional] [default to 'New message from {appName}'] |