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Undeliverable spam emails from my domain
edzillion

5+ Year Member



 
Msg#: 3798254 posted 3:01 pm on Dec 2, 2008 (gmt 0)

Hi
I am getting undeliverable reciepts for what look like spam emails coming from my domain. Here is an example:

Your message did not reach some or all of the intended recipients.

Subject:Attack your baby, she wants
Sent:02/12/2008 01:45

The following recipient(s) cannot be reached:

blah@blah.com on 02/12/2008 01:45
The message reached the recipient's e-mail system, but delivery was refused. Attempt to resend the message. If it still fails, contact your system administrator.
< server.server.com #5.2.0 SMTP; 550 ######## SPAM EMAIL NOT ACCEPTED ########>

The server listed at the bottom is listed second on the list of mx records for the domain the emails seem to be coming from.

What should I do to get rid of these? Should I be worried etc.

 

coolguythampy

5+ Year Member



 
Msg#: 3798254 posted 5:41 pm on Dec 2, 2008 (gmt 0)

I guess your server from which you send mails must have been black listed

edzillion

5+ Year Member



 
Msg#: 3798254 posted 9:36 am on Dec 3, 2008 (gmt 0)

Nope. I would have noticed that.
Anyone?

kaled

WebmasterWorld Senior Member kaled us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 3798254 posted 11:59 am on Dec 3, 2008 (gmt 0)

Since the subject of the email sounds spammy, I'll assume you didn't send it, therefore it is simply the case that a scumbag spammer has placed your email address in the Return-Path: header of their spam.

In the words of Tom Jones - It's not unusual.

Kaled.

edzillion

5+ Year Member



 
Msg#: 3798254 posted 2:12 pm on Dec 3, 2008 (gmt 0)

Ok thanks. I didn't send it, so that sounds perfectly reasonable.
But is there anything I can do about it? Should I be worried?

kaled

WebmasterWorld Senior Member kaled us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 3798254 posted 5:48 pm on Dec 3, 2008 (gmt 0)

Other than closing the "catchall" mailbox facility (if that is causing a problem) there's nothing you can do about it. Since there's nothing you can do about it, there's no point worrying about it.

Kaled.

bill

WebmasterWorld Administrator bill us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 3798254 posted 2:14 am on Dec 4, 2008 (gmt 0)

You could also look into setting up an SPF record for your domain. In that you would specify which servers were authorized to send mail on your behalf. The spam mail would fail that test and you could easily point that out to anyone who took issue. An SPF record can also figure into some e-mail filtering schemes, so it may be in your interest to set one up. It can't hurt.

edzillion

5+ Year Member



 
Msg#: 3798254 posted 10:43 am on Dec 5, 2008 (gmt 0)

Actually I had set up SPF records. I don't know the syntax but apparently it was previously set:

Blah.com Only accept mail from the domain Blah.com

But we were sending our mail through our ISP, so I have just got onto the hosts to update it to:

Blah.com Only accept mail from the domain Blah.com and ISP.com

I don't think this will solve the OP problem, but it should help getting past some mail filters etc. as you say.

bill

WebmasterWorld Administrator bill us a WebmasterWorld Top Contributor of All Time 10+ Year Member



 
Msg#: 3798254 posted 1:07 am on Dec 6, 2008 (gmt 0)

Actually SPF records work in the opposite way. They state that the listed ISP, domain or IP is permitted to send mail on behalf of that domain. Any other mail sent by spammers would automatically fail that test.

As stated, an SPF record can't stop them from sending the fake receipts, but your filters can more easily determine that they're illegitimate and send them straight to the dustbin.

BradleyT

10+ Year Member



 
Msg#: 3798254 posted 8:27 pm on Dec 8, 2008 (gmt 0)

I turned on catchall when I had a Yahoo store and was getting over 4,000 of these a day. Needless to say I quickly turned off the catchall account.

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