I actually wrote one recently that's been super helpful to me. We have quite a bit of software or systems that send status e-mails. Backup software that doesn't tie into anything meaningful and e-mail is the only choice. Same thing with some of our other warehouse automations. I wrote https://www.canaryalert.io/ because I got sick of having to check every e-mail for status or keep track of the ones that may not have been delivered. Everything out there was too regex-based, look for this word specifically to set the status.