Jira server unable to retrieve messages from IMAP server with No login methods supported error
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
The JIRA application is unable to retrieve messages from an IMAP server and displays error messages like the following in the logs:
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[service.services.mail.MailFetcherService] IMAP[#####]: Error connecting to host 'xxx' as user 'xxx' via protocol 'imap': javax.mail.MessagingException: No login methods supported!;
Cause
The Java mail library used by the JIRA application is not configured to use TLS for non-SSL connections by default. If you connect to an IMAP server without using SSL, and the server is not configured to allow unencrypted connections, you may see the error shown above.
Resolution
There are different ways to resolve this problem:
If following options 1 or 2 below, please follow the steps on Connecting to SSL services to import the Certificate from the IMAP server in order for the connection to work correctly.
Option 1:
Switch to using an SSL connection to communicate with your IMAP server.
Option 2:
If you are connecting to your IMAP server over a non-SSL connection (using STARTTLS), set the following property to the JIRA applications Startup Options:
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-Dmail.imap.starttls.enable=trueOption 3:
Allow unencrypted communications between your JIRA application instance and your IMAP server (not recommended).
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