Dnia 26.04.2020 o godz. 17:00:31 Richard Damon pisze: > > I have never had GMail ask me to setup DMARC, they will ask you to setup > SPF or DKIM as a first step for delivery problems, as letting them
Did you read https://support.google.com/mail/answer/81126 ? (That's the page their "sender troubleshooter" form is referring to) "To minimize the chance that your messages are marked as spam, set up these authentication methods: * Publish an SPF record for your domain. SPF prevents spammers from sending unauthorized messages that appear to be from your domain. * Turn on DKIM signing for your messages. Receiving servers use DKIM to verify that the domain owner actually sent the message. Important: Gmail requires a DKIM key of 1024 bits or longer. * Publish a DMARC record for your domain. DMARC helps senders protect their domain against email spoofing." When you fill in the sender troubleshooter form, it asks you explicitly if you have done all this. > As to Disposition-Notification-To: headers, the RFC for those clearly > state that it is just a polite request to the receiving system, and they > are well within bounds to ignore it. I personally always disable the > automatic reply off those headers (and won't use a system that won't let > me do so if I have any choice about it). With Gmail - at least with Gmail's web interface (and that's what the majority of their users use) - you have no choice. It simply doesn't support that header at all. -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub."
