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They pay 3rd parties to handle relay duties. A large chunk of reliable delivery is based on those received headers, aka what systems your mail is relayed throu
by uuddlrlrbaba 3y ago
They pay 3rd parties to handle relay duties. A large chunk of reliable delivery is based on those received headers, aka what systems your mail is relayed through.
- awesomeMilou 3y agoLol wait, that sounds like e-mail deliverability is almost set up like cartels.
- ozr 3y agoCartel is maybe overly pejorative, but it's definitely based on relationships. Postmasters at large ESPs and inbox providers can and will text each other to resolve issues. This is pretty much how the internet works as well (BGP, etc). It's opaque, but open.
- theK 3y agoBut is the Internet really as centralized as Email has become? I was living under the impression that Internet backbone providers where more diversified than that.
- ElevenLathe 3y agoWith BGP, you are usually only peering with a couple entities unless you are yourself in the "big boys club". It's a relationship business, but you only need a relationship with the handful of engineers who are on the other side of your own links.
- 77pt77 3y agoMass sending is controlled by sendgrid and the likes of that.