Currently, when an Atlassian system sends an email to a user (due to a Cloud site invitation, Jira or Confluence notifications, any changes that would be notified via email) there is the possibility that the email will be bounced. When this happens the email address is marked with a bounce and all further emails are blocked. This mechanism is made to prevent Atlassian mail services from being marked as spam by other mail services but currently it is not possible for site/org admins to know when this happens, nor to clear the bounce on Atlassian side and it is required to contact Atlassian Support for this.

The suggestions are:

• To provide a site/org level function where the admins can see all the managed users in their domain that have a bounce and be able to clear it themselves.
• Regardless of the implementation of the function from the previous point, send notifications to the admins when a user gets a bounce blocking their emails from Atlassian services.

Notes

More information on this topic, here: Jira Cloud email notification suppression list and why users don't receive email notification

There are now two self-serve features for removing a user's email address from the suppression list in certain cases:

• For new users (who have not yet logged in for the first time) clicking the Resend invite link will remove the email from the suppression list.
• If the user has a verified account (i.e. they have logged into your Jira instance before) and the suppressed email notifications are being generated by a Jira Software or Jira Work Management project, project admins now have the ability to remove the email address from the suppression list using the Project email audit

If the self-serve options are not available to you we recommend creating a Support Ticket with us. For a quick resolution, please include the affected user's email address in your message.