GitLab

Gitlab has the option to do various tasks, like creating issues and commenting on merge requests, by email. I tried both commenting on merge requests and creating an issue and both failed. Looking at my mail headers they look good (according to https://docs.gitlab.com/ee/administration/reply_by_email.html), so something else is wrong.

Another interesting bit is that I only sent an email trying to create a particular issue (no GUI interaction after/before) and arma is getting a notification (there is no "arma" string in the mail body), yet there is no issue in Gitlab created.