Several Months ago we updated Jira to 3.16.8 and use JETI to manage our incoming e-mails. We also have what we call our Jira service account simply titled Jira which we use as the account to run our rules among other things.
After this update we noticed that all comments sent by e-mail are now showing up saying "jira" made the comment, but checking our E-mail tab we can see who actually sent in the e-mail comment. The only way around it that we have been told is to add potential commentators to the request participants, which works but isn't ideal in the slightest.
We have tried re-creating all the mail handlers and putting all the settings back to the defaults but the issue still persists.