Re: [exim] UCEPROTECT, APEWS and the truth about Marc Perkel

Top Page

Reply to this message
Author: Johann Steigenberger
To: exim-users
Subject: Re: [exim] UCEPROTECT, APEWS and the truth about Marc Perkel
Rick Copper wrote:

> I just had a joe-job spam incident against one of our domains and let me
> tell you I would MUCH prefer a million verification attempts to the
> thousands of freaking postmaster bounces that include a portion of the
> original email. See, in a prefect world every server that received the

> would have checked our spf records that list every conceivable host that
> does/might deliver mail for our domain(s) and hard fails everything else.

There is NO excusion for a system to backscatter.
Those get listed at UCEPROTECT too ...

> It's not a prefect world and I got thousands of bounces (why did they

> them in the first place) and "spam returns" that end up costing FAR more
> since they end up being passed on the SpamAssassin and the virus checking
> routines.

Who told you that nonsense, that you have to accept mail to spamtraps?
If someone hits a spamtrap you definitiveley know that it can not be a real
So why accept it ?
You can simply reject everyone hitting one of your spamtraps at envelop
level after rcpt to...

>> And last not least:
>> RFC 821 knows a command "VRFY" to do that test.
>> Most Administrators have chosen to disable this, because Spammers were
>> abusing it.

> Exactly so what is left?

What will be left if all Users out there will break RFC821 and stop
accepting NULL-Senders
thanks to guys like Marc and you?

> Anyone trying to circumvent a restriction on a remote system
> is an Abuser.
> So faking to be a null sender and going up to RCPT TO means you are an
> Abuser.
> That is what Exim's SAV does.

Again, then what is the answer? Just open the door to anything just because
they say they are slkjjksd@????

If it goes to a nonexistant user just say 550 at the gate.

Johann Steigenberger