Automatic contact creation
Every transactional email sent via /v1/send automatically creates or updates a contact for each recipient.- If the recipient already exists, their contact is updated with any new metadata you provide.
- If the recipient is new, a contact is created automatically.
- If your active contact limit is reached, Mailrify creates the recipient as a pending contact so the email can still be delivered.
Sending with attachments
Mailrify supports sending attachments with transactional emails. You can include up to 10 attachments per email, with a maximum total size of 10MB. Attachments should be base64 encoded and included in theattachments array when sending the email via the /v1/send endpoint.

