this post was submitted on 18 Aug 2025
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[–] frezik@lemmy.blahaj.zone 11 points 1 week ago

Some of those "obsolete" things are outright blocked for specific reasons. For example, routing addresses through multiple servers. It was abused by spammers, so it's almost always denied these days.

Looks like this:

<@foo.example.com@bar.example.com:123@example.com>