Someone told me it's possible.
Actually i always get the message in screenshot.jpg.
Our Organisation has to use IE because of ERP Software, so all send links from Atlassian don't work.
welcome to the Atlassian Community!
Internet Explorer 11 is not supported anymore. Even if there are any "tricks" around which would provide you to fake the user agent it would not guarantee a flawless usage of the old IE.
Further, Apps will also have trouble - I am citing from linked article:
For Atlassian cloud, server, and data center apps such as Portfolio for Jira, Questions for Confluence, and Team Calendars for Confluence, apps will continue to support IE11 until 31 March 2020 (cloud apps), or until the last version of Jira or Confluence that supports IE11 has reachedend of life (server and data center apps).
Hi Community! We're thrilled to share that Team Calendars for Confluence is now a built-in feature for Confluence Data Center releases 7.11 and beyond. A long time favorite, Team Cale...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events