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.
vim /opt/atlassian/jira/atlassian-jira/WEB-INF/classes/templates/email/html/issuementioned.vm
Then hit the insert key and then remove the following lines:
#parse('templates/email/html/includes/patterns/comment-top.vm')
#set ($issueTitleBody="#parse('templates/email/html/includes/patterns/comment-title.vm')")
#rowWrapperNormal($issueTitleBody)
Then press 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.