Normally, you do not need to manage the mail queue. Jira automatically places emails into the queue and flushes them periodically. However, as an administrator, there may be times when you wish to inspect the mail queue, especially to troubleshoot problems related to Jira notification emails. Sometimes, emails can get stuck for a number of reasons, and inspecting the mail queue will help you identify these problems and fix them.

Perform the following steps to view the content of the mail queue:

1. Browse to the Jira administration console.
2. Select the System tab and then the Mail queue option:

This page provides you with a one-page view of the current emails in the queue that are waiting for delivery. There are two queues—the main mail queue and the error queue.

The Mail queue tab contains all the emails that are pending to be delivered. If Jira is able to successfully deliver these emails, they will be removed from the queue. Items listed in red indicate that Jira has unsuccessfully attempted to send those emails. Jira will retry 10 times; if still unsuccessful, these items will be moved to the error queue.

The Error queue tab contains emails that cannot be delivered by Jira. You can choose to resend all the failed items in the error queue or delete them.