Re: relay spam

Jerry Sumpton ( )
Tue, 03 Feb 1998 14:23:56 -0800

I don't like the idea of blocking people who use our servers to relay. That
is like presenting a locked door that they can try and get around.

Instead, I accept their messages and delete them. I use perl's regular
expressions and initially spool the suspect message into a directory. Once
a problem message is identified, I can always find something that reliably
identifies the message. Sometimes "mail from:" or "subject", but other
times something like a phone number or marketing slogan. I can usually
catch close to 100% of the messages without a performance hit on our servers.

The advantage to this is that it completely wastes the thief's efforts. I
have seen times where we have deleted several messages a second for 4 days
from just one perpetrator.

I feel that this method helps us all a lot more than just passing a bum on
to the next server. It is not the spam that bothers me. It is that some
feels that they can steal our resources.


At 08:54 AM 2/2/98 -0800, you wrote:
>Actually, he tried to hit us again last night, so I put a block on just his
>"username" and his email address. When he changes it on Hotmail, I'll
>block that one too. Last night wasn't a problem except our machine had
>some real problems with returning all of the mail that he sent, but at
>least it wasn't delivered this time and now it doesn't get in at all...
>At 02:09 PM 2/2/98 +0000, you wrote:
>>At 08:29 pm 31/01/98 -0500, you wrote:
>>>Good luck with this one Mitch, The ones we got used an incrementing
>>>address. We've tried but he always finds a way back in. He does not
>>>relay off of us but he sends junk to our users regularly. We get the
>>>bounce off of AOL and Hotmail both. It's not like I can block the whole
>>John, you might want to look at the extended SPAM rejection capabilities of
>>NTMail which includes AI and banned word file. Should be some tool there to
>>help with this.
>>You can try the NTMail server for free by downloading it from our Web site
>>(URL below). You will also find information on our Web site about our
>>anti-virus, junk mail filtering, list server and Fax gateway options.
>>-Regards, Lloyd
>>Lloyd Brunt NTMail/NTList on
>>Techincal Support NT Products on
>>Internet Shopper Sales Tel: +44 1275 340333, Fax: 340056
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