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I had this opinion, until I changed IP addresses.

It doesn’t matter to Google that I have DMARC, DKIM, and SPF records that practically guarantee the mail server is legitimate. The domain isn’t blacklisted and I don’t send bulk mail. But ever since the IP address changed, for the past six months all my messages have been marked as spam in Gmail (so for almost everybody).

There’s zero recourse. You simply don’t matter when it comes to the big players, and it sucks when it happens to you.




Are you on a dynamic IP? I used to run a mail server on a dynamic IP, and many people will be butt-hurt about it and block you on sight.


The IP address change was from spinning up a new server on DigitalOcean.

From what I could gather, changing the IP on a mail server is seen as suspicious and resets your reputation level. Google handles this by “safely” marking all of your mail as spam, I guess until your reputation is restored, which is nearly impossible since nobody will see your mail.




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