DKIM, DMARC, SPF, rDNS/PTR, EHLO… all correct and verified in the email “original source,” BY GOOGLE. Still goes to SPAM folder because **** you, apparently. I hate Google.

  • daveyOsborn@infosec.pub
    1·
    3 hours ago

    They claim its for spam prevention which is why most ISPs actually also block outgoing SMTP port 25.

    European ISPs block egress port 25, not American ones, generally. Not sure about the rest of the world.

    In Europe, one refuge is to send using the GSM networks, which tend not to block egress 25 for some reason.