Removing Mention Comments
To stop Jira sending out comments within mention emails (when you @ someone on ticket) we need to do the following. This is to prevent sensitive info in comments being sent out via email:
First we need to change to the right directory.
Then hit the insert key and then remove the following lines:
Esc followed by
shift+colon and then type
wq and hit enter.
Then restart Jira
systemctl restart jira
Then everything should be back up and running.