The JIRA Server could not be contacted from Mail Handler Configuration Page
Platform Notice: Server, Data Center, and Cloud By Request - This article was written for the Atlassian server and data center platforms but may also be useful for Atlassian Cloud customers. If completing instructions in this article would help you, please contact Atlassian Support and mention it.
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
Problem
The following error occurred in the Mail Handler Configuration Page:
Tested the connection to the mail server and it was successful.
Diagnosis
Environment
- After Upgrade from JIRA 6 to Jira 7
Cause
Incorrect Proxy/SSL configuration.
Workaround
Confirm if Proxy/SSL configuration is actually the one causing this problem. It can be solved by bypassing proxy/SSL as per this KB: How to bypass a reverse proxy or SSL in Application Links and add a bare minimum HTTP connector to your server.xml.
Restart your JIRA instance for this connector to take effect.
Once done, access JIRA using *http://<ip address>:<port>*. This should *not* re-write/re-direct the URL.