On 4/26/20 6:41 PM, Jaroslaw Rafa wrote: > 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)
That looks like it got added since the last time I needed to deal with them, just having SPF has done well enough for most of my needs. My major issue has been running a mailing list, so most of my outgoing mail doesn't have my domain in it so DMARC isn't as important for my domain. > "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. In my opinion, totally ignoring the header is not that bad of an option. -- Richard Damon
