In order to process incoming e-mail messages as issues registered in GitLab you need to have catch-all mailbox and GitLab configured to handle it. However, there are few quirks you need to know when setting it up. Assuming you have GitLab installed as well as iRedMail. iRedMail First, create new mailbox in iRedMail admin panel. Then manually create forwarding record. You could skip this is you purchased iRedMail Pro: At this point you can check if catch-all feature is working by sending mail to non existing mailbox user. What is especially important is to verify if messages will come once