Martin Gregorie wrote: > Do we know the OIP is using sendmail? Yes. Here's a quote: >> I'm using SpamAssassin 3.2.3, milter-limit and sendmail
> Postfix checks local recipients against /etc/passwd and /etc/aliases by > default. It can also be configured to apply the same checks to local > senders though the defajult is not to check. > > I'd hope that other MTAs have the same capabilities. That's not what I was talking about. Obviously if a MTA can't find the recipient, it won't deliver. I'm talking about the *other* recipients, e.g. To: Foo Bar <f...@example.net> Cc: Foo Baz <f...@example.net> If user foo exists but user fbaz does not, you should expect that an MTA will reject fbaz but deliver that same message to foo. I'm talking about a way to cause SpamAssassin (or something else, whatever) to note the fact that a *different* recipient, fbaz, doesn't exist, and to read it from the headers rather than the envelope recipients (the way an MTA does).
