Sorry if you’ve emailed me recently only to have the email bounce back to your inbox. This web service is being hosted on a VPS server (as opposed to my usual collocated machine) and the incredibly bad sys-admins at Sagonet decided to screw with the VPS servers.
In short, they had force-installed a pathetic MTA (Linux email back-end) which was not compatible with my current setup. I was none the wiser until I was scouring the logs as part of my weekly security routine.
Sendmail is old and lame. Postfix is much, much better .. so please, Sagonet, stop trying to force install that garbage on MY MACHINE!
/end of rant