Eric Hughes says:
Why sendmail doesn't have anti-spam protection at this point is beyond me. Denial of email service to one user should not deny service to all others. I consider broken any email system that crashes a machine because of a disk partition filling.
As a mail administrator for many years, I've never seen a site crash because of a filling disk partition due to mail overload. I've seen Sendmail shut itself down temporarily, but thats to be expected. As for the question of mail overload for one user harming the others, its a design decision. The only alternative is to produce quotas for mail delivery, which at most of the places I run would be a very bad thing. Strictly speaking, sendmail has nothing to do with local delivery and isn't in a position to do any of this anyway -- but its easy enough to change the local mailer (which is not part of sendmail) to do quotas if you like. Perry