I should ask a sendmail list, but this is the most responsive, knowledgable group I've ever dealt with so... How can I configure sendmail to reject mail for users that don't exist? One of the annoying things that happens to my FC4 mail server all the time is spammers/viruses will use fake accounts such as 'fakeadmin@xxxxxxxxxxxx' and my server always takes it because the domain is correct. It just gets delivered to the postmaster@xxxxxxxxxxxx , I'd rather it not get into my server at all. I think there are milters for sendmail to check against LDAP, but I don't know the details of it yet, and I don't have an LDAP setup for the my domain yet (still learning). I was wondering if there is a way just to configure sendmail to reject mail if it has a To: CC: or BCC: of a user that doesn't really exist for a domain.
