Reason for the popup from Outlook asking sign in to https://api.media.atlassian.com

[J.J]

Dear fellow community members,

I am puzzled with a "Sign In" Windows Security popup from Microsoft Outlook, every time Outlook does a Send/Receive. The popup points to api.media.atlassian.com and I suspect it is something related to Jira or Confluence, we use in the company. It is annoying because it pops up every now & then like an unsatisfied genie. Even after providing the correct credentials that I use for Jira, the popup refuses to disappear and keeps reappearing.

I look forward to getting some helpful tips towards figuring out what could be causing this popup and eventually making the popup go away.

So far, no one I talked to could point towards the root cause. Here are the information collected over the course of troubleshooting:

1) There are no emails / notifications from Jira / Confluence in my inbox, with attachments.

2) I tried configuring Outlook in another machine with the same email and contents. That machine doesn't have this popup.

3) Since this is a popup from Windows / Outlook, I approached the outlook support team, however, they were not able to point out to a root cause.

Thanks in advance,

J.J

[J.J · Accepted solution]

Dear community members,

After several months of troubleshooting and researching, the issue mentioned in this post was finally resolved. Here is what was done to resolve the issue: 

The root case was traced to an "untitled" calendar in Outlook. This calendar was grouped under "Other Calendars" section. This calendar could have been created when I registered for one of the Atlassian programs. From when this calendar was removed from Outlook, the popup also stopped appearing on Send/Receive. 

Hopefully these steps will help others (if any) facing a similar issue.