Re:Email Explained from First Principles
by sbayeta on Saturday May 08, 2021 @06:59PM
(#27091572)
What VPS provider are you using? I set up MiaB on Digitalocean a few weeks ago only to find out they won't open port 25.
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DigitalOcean.
They have entire ranges of IP addresses block by some of the blocklist but my users are here in the U.S. and from what I could find those are mostly used outside the U.S.
It's a hit or miss thing. If you spin up a new "Droplet" you should do an IP blacklist check on before your build your server. If it's on more than just a few you might want to start over.