Ray,
I used OpenBSD's spamd to do that, although on a primary MX. It worked great in reducing spam. The only downside is that if someone sends you mail for the first time, you have to wait 30 mins to an hour to receive it. It really sucks if you are waiting from an email from a new forum, client, contact, etc. For a secondary-only box with a pretty reliable primary MX, I would do it though.
Mark
-ray wrote:
I read an article in SysAdmin that talked about setting up a spamtrap on a secondary or tertiary MX box. The box would look like a good MTA, answers helo and 'mail from', but on 'rcpt to' always returns "451 Try again later". The idea being spammers prefer secondary MX's, but will never try again. A legit host that happens to connect will of course try again later (hopefully to primary MX). The author claims this reduced spam intake by 10%.
Anyone done anything similar? Any thoughts? Seems like a simple way to catch a lot of spam...
ray =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Ray DeJean http://www.r-a-y.org Systems Engineer Southeastern Louisiana University IBM Certified Specialist AIX Administration, AIX Support =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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