[JadeNB]

> Self-hosting inbound email is trivial. Anybody will send email to any random domain, they're just not willing to accept it from random sources.

In terms of authentication, this is not entirely true. It's less common these days, but I used to have a lot of trouble with sites rejecting my attempts to create accounts with e-mail addresses from my disposable-e-mail-generator of choice.

[elric]

Just yesterday I tried to register for a service using one of my own domain names with self hosted email. The confirmation mail arrived, but as soon as I clickes the link I was told that my email address wasn't allowed.....

Not sure what kind of crap some folks are smoking, really.

[FireBeyond]

> from my disposable-e-mail-generator

Well, I suspect those are more specifically blacklisted.