higgsbosonGoogle now blocks spoofed emails for better phishing protection
I.e. it’s now even harder to run your own mail server.
If it was crypto-related the argument would be Think.if the children™, since it’s email the excuse is spam.
If you can’t set DKIM and DMARC records you shouldn’t be hosting email.
AnUnusualRelicYou can’t anyway because your whole address block is blackholed in every spam filtering list in existence for “reasons”.
Mine works fine