Newsgroups: comp.mail.misc, alt.comp.mail.postfix
From: Spam Guy <S...@Guy.com>
Date: Tue, 10 Jul 2012 22:03:56 -0400
Local: Tues, Jul 10 2012 10:03 pm
Subject: Re: How important is using an SMTP server that matches the email address?
Nomen Nescio wrote:I manage the smtp server at a small company, have been since about 1998.
> Actually no, there is no good reason to block on the basis of IP
When-ever we get a spam, I check the sending IP against an inventory of
More specifically, say the spam came from 18.104.22.168. I check and see if
We get maybe a dozen spams a week to addresses like "sales@" and
Back in 2005 these accounts were getting 50 spams a day - and I would
Then in 2006 we changed ISP's and I forgot to enter our MX record - but
I then looked up some IP allocation lists for various countries.
We block all of Russia and Ukraine, all of South and Central America,
Our "Contact Us" web-page lists a gmail account (which forwards to our
If I find that a particular domain is used frequently in the "Return
Our SMTP software (post.office, made by the defunct software.com) runs
I only wish it could do more in terms of blocking based on subject line,
It has a limit of 10,000 lines in the IP block-list. Each line can
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