From header info It is not being relayed by shared hosting servers these domains are on. Meaning method 1, which I knew, but you say I am out of luck. At some point do my domains start getting black listed as spammer.
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spam using my domain name
I get catchall from a couple of my domains in the thousands in the form of postmaster's delivery status notification failure reports or blocked spam messages. In the example below the origionator sent with from: dac@MY-DOMAIN.com . Though this did not come from my web or mail server, because the used @MY-DOMAIN.com in from field I get these in catchall. I use catchall extensively to give out my email specific to purpose it was used for and as aliases for business use. I hate that I am getting all thesed returned spam, and that thousands of more people are getting spam from my domains. Though I have many more domains this occurs with just 2 of them so far. Any suggestions experts. Desperate. Thanks
Received: from dsl-203-33-163-29.NSW.nets
Fri, 22 Sep 2006 21:08:33 -0400
Received: from [203.33.55.191] (helo=pwr)
by dsl-203-33-163-29.NSW.nets
id 1GQw1g-0006TS-9T; Sat, 23 Sep 2006 12:09:52 +1100
Message-ID: <001f01c6deac$cae08279$bf3
From: "Albert Sanchez" <dac@MY-DOMAIN.com>
To: <aafkj4btroy@agatesoftware
Subject: future tense
Date: Sat, 23 Sep 2006 12:00:13 +1100
MIME-Version: 1.0
Content-Type: multipart/related;
type="multipart/alternativ
boundary="----=_NextPart_0
X-Priority: 3
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook Express 6.00.2800.1106
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106
Return-Path: dac@MY-DOMAIN.com
X-OriginalArrivalTime: 23 Sep 2006 01:08:33.0738 (UTC) FILETIME=[CA5B9AA0:01C6DEA
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Answers
http://www.openspf.org/
You should add spf records in your dns. It will help receiving mailservers who check spf records to know if the mail that they receive with your domain name is sent from a legitimate sender.
It won't stop spammer from doing that, but the receiving mailservers will be able to easily determine in their filtering if they use spf checking that this email is not originating from you.
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by: enfzPosted on 2006-09-22 at 20:03:21ID: 17582023
Spammers can spam using the following manner -
1. Changing the header to show that it is coming from your domain name, which in this case..there isn't really much you can do unless you actually got the actual spam e-mail which you can back track the IP address (which most probably is daisy-chained to a few servers which makes it impossible to track).
2. Access the mail-relay on your mail server and send the spam using it.
If its No. 1, most spam script etc in the destination of the spam, will just reply back to the 'from' address, which is probably spoofed by the spammer.