OSEC

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Re: sender address verification

From: /dev/rob0 (rob0gmx.co.uk)
Date: Thu Sep 01 2005 - 18:48:47 CDT


On Thursday 2005-September-01 10:32, suneel cumar wrote:
> i have 3 domains hosted one of the domain gets too
> many junk mails but other not much exposed to outside
> much and less mails comes to this that are known by us
> but they are from misconfigured clients. Due to this i
> enabled sender address verification. but i don't want
> to enable sender verification to other 2 domains.

What other anti-spam measures are you using? Sender verification is
inefficient against spam, and is seen by many as abusive.

> Looking for an better solution from the community.

RBL's (chiefly Spamhaus SBL-XBL), HELO checks, greylisting.

http://jimsun.linxnet.com/misc/postfix-anti-UCE.txt
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