Autor: Marc Sherman Data: A: exim-users Assumpte: Re: [exim] Seeking advice how to deal with spam faked to appear as
coming from my domain
Ian Eiloart wrote: >
> Ah! I didn't realise that. I guess that has the disadvantage that good
> recipients get dropped with the bad ones, so if I send email to three
> people in the same domain, and one is undeliverable, then the other two
> don't get it either. Great for spam, but bad for genuine senders.
Still not right. If the sender is a legit mailserver, it will mark the
bad address as 5xx'd, bounce it, and requeue the message with the other
two addresses for a resend attempt.
It's a waste of resources, and I don't recommend using drop in the rcpt
acl unless you've got enough evidence to be pretty certain the sender is
a trojaned windows spamserver (ie: 20 bad RCPTs on one message, that
kind of thing), but drop in RCPT should never lose any legitimate mail.
