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Beware that Digital Ocean blocks all traffic for outbound SMTP on floating IPs: https://www.digitalocean.com/community/questions/floating-ip-gateway-as-default-

Beware that Digital Ocean blocks all traffic for outbound SMTP on floating IPs: https://www.digitalocean.com/community/questions/floating-ip-gateway-as-default-router-and-source-address-for-outbound-connections?comment=49891 https://www.digitalocean.com/community/questions/floating-ip... This pretty much breaks the entire usecase, as you cannot build an IP reputation.

cmdrfred 10y ago
Floating IP's are not the same as the dedicated IP you get from the VM itself. I've been sending outbound on that for the better part of 2 years. To the other point, if you have a problem with spam scores, you are probably sending too much mail for this sort of solution (consider Mailgun 10,000 emails/month for free). For an individual it is fine, not for use as a mailing list. A clean IP address (every IP I've ever tried was clean), DKIM, and SPF will allow you to hit pretty much anybody. It might take a few people pulling you out of spam on gmail before you can send to them, but I think that's true of any new mailserver.