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Mandrill

What is Mandrill? Mandrill, also called Mailchimp Transactional, is Mailchimp’s transactional email service for application messages. Read more on the official website and in the official documentation. Profile Mandrill supports API, HTTPS API, and SMTP delivery. The API schemes share the API key field; SMTP credentials are separate. Create the connection Before you begin, create […]

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Contents
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  1. What is Mandrill?
  2. Profile
  3. Create the connection
  4. Verify delivery
  5. Webhooks
  6. Troubleshooting

What is Mandrill?#

Mandrill, also called Mailchimp Transactional, is Mailchimp’s transactional email service for application messages. Read more on the official website and in the official documentation.

Profile#

Mandrill supports API, HTTPS API, and SMTP delivery. The API schemes share the API key field; SMTP credentials are separate.

  • API: mandrill+api (default) and mandrill+https require a Mandrill API key (secret).
  • SMTP: mandrill+smtp requires an SMTP username and SMTP password (secret).
  • The profile does not require extra endpoint settings for the API schemes.

Create the connection#

Before you begin, create an account and prepare the credentials for the selected transport. Complete any sender or domain verification required by the provider.

  1. In WordPress admin, open Jooosi Mail → Connections and choose New connection.
  2. Enter a descriptive Connection name and select Mandrill in Profile.
  3. Choose mandrill+api, mandrill+https, or mandrill+smtp and enter credentials for that scheme. Use mandrill+api unless your setup specifically calls for the HTTPS variant.
  4. Review the sender, routing, and advanced settings for this connection.
  5. Choose Create connection to save it.

For the shared connection workflow, see Provider profiles and transports.

Verify delivery#

Follow Send a test email and send it to a mailbox you can check. A test sends a real email. Check the mailbox and Jooosi Mail → Logs for the attempt status. See Email logs and resending for details.

Webhooks#

Mandrill webhooks can report send, deferral, bounce, delivery, rejection, click, open, spam, and unsubscribe events. Add the shared webhook secret to the connection so Jooosi Mail can validate Mandrill’s X-Mandrill-Signature HMAC. Follow Provider webhooks for the endpoint; copy the secret from Mandrill’s console and keep it private.

Troubleshooting#

  • For missing-field validation, confirm the scheme and fill all required settings listed in Profile.
  • After a failed test, re-copy the matching credential and inspect the connection status and email log.
  • If an API connection fails validation, confirm the API key is in the API Key field; SMTP credentials are not interchangeable. If webhook requests are rejected, confirm the signing secret and X-Mandrill-Signature header reach WordPress.