Learn more about Sendmail Queued Mail for Delivery message from our experts. Our Sendmail Server Support team is here to help you with your questions and concerns.

Sendmail Queued Mail for Delivery | About

If you have been running into the “Sendmail queued mail for delivery” message, you are in the right place.

According to our experts, this message is often found in the logs or output of the Sendmail mail transfer agent.

It lets us know that Sendmail has accepted an email message and has placed it in its outgoing mail queue for delivery to the recipient’s mail server.

When we send an email via an email client that uses the Sendmail CLI, it involves these steps:

1. First, the email is submitted to Sendmail by the sending application. This is done with the Sendmail command or via a programming interface like SMTP.
2. Then, Sendmail processes the submitted email and verifies the sender’s identity, recipient addresses, etc.
3. After that, Sendmail queues the email for delivery by placing it in the outgoing mail queue.
4. Now, Sendmail periodically attempts to deliver the queued email to the recipient’s mail server. This continues until the email is successfully delivered or until the delivery attempts fail after a fixed number of tries.
5. In case the recipient’s mail server is reachable and the recipient’s mailbox is available, Sendmail will deliver the email to the mailbox. However, if the recipient’s server is temporarily unavailable or the recipient’s mailbox is full, Sendmail will retry later.

   Furthermore, if the delivery attempts are exhausted, the email will be bounced back to the sender as undeliverable.

According to our experts, the “queued mail for delivery” message usually appears in the Sendmail log files or on the command line when using the Sendmail utility.

It indicates that the email has been successfully accepted by Sendmail and is now in the process of being sent to the recipient.

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Conclusion

Today, our Support Techs introduced us to the Queued Mail for Delivery message,