Images not showing in JIRA email notifications
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
Images are not showing in JIRA email notifications. See screenshot for example:

Cause
This could be caused by a session token of JIRA that is not available to the email client, causing the referenced image URL to not be downloaded with the message.
There is a bug ticket filed for tracking the progress of this issue here: JRASERVER-41675 - Wiki markup embedded images are not shown in email notifications
Resolution
View the email message source
Find a img tag in the source similar to http://base.url/secure/useravatar?ownerId=username&avatarId=10200
Paste this URL into a browser and see if you are able to view the image
If you are asked to authenticate in JIRA, there may be a missing session token causing the missing images in the email notification.
Please try logging into JIRA and see if the remediates the issue
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