Good point Mr. East. I beleive you are correct there.

Regards

Mr Louis Joyce
Computer Support Analyst
Network Administrator
BT Ignite eSolutions




-----Original Message-----
From: East, Bill [mailto:[EMAIL PROTECTED]]
Sent: 16 November 2001 16:04
To: Exchange Discussions
Subject: RE: Strange Outbound Messages (Postmaster)


Sorry Mr. Joyce, I don't agree. Commercial email (unsolicited or not) is
coming into his domain, but he is not relaying. Instead, the spammers are
sending to invalid addresses within his domain and using invalid (or
unresolvable) return addresses.

So: 1) Spam comes in.
2) Exchange tries to bounce an NDR back to the return address.
3) The attempt fails after repeated attempts. 
4) Exchange generates the message showing that the NDR could not be
delivered to the return address in the message.

Of course, you could try to contact the senders, but why would they care?
Best thing to do is ignore the messages or blackhole the senders.

-- 
be - MOS



 Earth Army Recruiting Center: What are you, chicken? Buk buk buk! 


> -----Original Message-----
> From: Joyce, Louis [mailto:[EMAIL PROTECTED]]
> Sent: Friday, November 16, 2001 10:52 AM
> To: Exchange Discussions
> Subject: RE: Strange Outbound Messages (Postmaster)
> 
> 
> You're being spammed by the looks of things, unless you are 
> intentionally
> sending out emails with the subject lines you are describing 
> below. You need
> to turn relaying off or configure it correctly.
> 
> Regards
> 
> Mr Louis Joyce
> Computer Support Analyst
> Network Administrator
> BT Ignite eSolutions
> 
> 
> 
> 
> -----Original Message-----
> From: Murphy, Brian [mailto:[EMAIL PROTECTED]]
> Sent: 16 November 2001 15:56
> To: Exchange Discussions
> Subject: RE: Strange Outbound Messages (Postmaster)
> 
> 
> Ok.  I've read both Faqs.  Now what?  I did not read anything 
> that tells me
> how to track down the source of the message.  There does not 
> appear to be
> any information to go by.  Can I track by Message ID?  How do 
> I get the
> message ID from a Postmaster notification?  How do I 
> determine the source?
> 
> -----Original Message-----
> From: Andy David [mailto:[EMAIL PROTECTED]]
> Sent: Friday, November 16, 2001 9:39 AM
> To: Exchange Discussions
> Subject: RE: Strange Outbound Messages (Postmaster)
> 
> 
> hehe.
> And actually it should be 2821 ,( Section 6.1 I believe)
> 
> 
> -----Original Message-----
> From: Murphy, Brian [mailto:[EMAIL PROTECTED]]
> Sent: Friday, November 16, 2001 10:42 AM
> To: Exchange Discussions
> Subject: RE: Strange Outbound Messages (Postmaster)
> 
> 
> Doh...... Sorry.
> 
> "3.39 Q: Messages are being sent from my site with an empty 
> originator, 
> A: That is a system generated message, either an NDR or a 
> delivery receipt.
> See RFC-821, section 3.6 for the reasoning behind this."
> 
> 
> -----Original Message-----
> From: Andy David [mailto:[EMAIL PROTECTED]]
> Sent: Friday, November 16, 2001 9:31 AM
> To: Exchange Discussions
> Subject: RE: Strange Outbound Messages (Postmaster)
> 
> 
> FAQ
> 
> 
> -----Original Message-----
> From: Murphy, Brian [mailto:[EMAIL PROTECTED]]
> Sent: Friday, November 16, 2001 10:38 AM
> To: Exchange Discussions
> Subject: Strange Outbound Messages (Postmaster)
> 
> 
> I've started getting some strange Outbound messages to 
> Postmaster.  Please
> take a look.  It appears that these messages are originating 
> from the inside
> but I am not sure how to track down their source.  Any suggestions?
> 
> -----------------------
> A mail message was not sent because the maximum time for delivery has
> expired.  The message was not delivered to the following addresses:
> 
> The message that caused this notification was:
>       To:       <[EMAIL PROTECTED]>
>       From:     <>
>       Subject:  Undeliverable: Lowest mortgage rates on the web!
> -----------------------
> A mail message was not sent because the maximum time for delivery has
> expired.  The message was not delivered to the following addresses:
> 
> The message that caused this notification was:
>       To:       <[EMAIL PROTECTED]>
>       From:     <>
>       Subject:  Undeliverable: Congrats! You're a Winner!
> -----------------------
> A mail message was not sent because the maximum time for delivery has
> expired.  The message was not delivered to the following addresses:
> 
> The message that caused this notification was:
> 
> 
>       To:       <[EMAIL PROTECTED]>
>       From:     <>
>       Subject:  Undeliverable: Never pay another phone bill again
> 
> 
> 
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