You have selected Reject NUL in the SMTP Security. You
really should not do this as most MTA's will use this to send
delivery failures.
Dusty
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, August 02, 1999 4:09 PM
Subject: [IMail Forum] Fwd: [Fwd: Postmaster notify: Data format error]
I just received the following message regarding a mail problem with a site
we
host. We run 4.07 and have the anti-spam feature turned on (forwards only
our own users' mail). Of course, these people were apparently sending mail
in; so why was there a problem? We've never had this happen before. Anyone
else run into this?
Ben Bednarz
========================================
(message received:)
In a message dated 8/2/99 7:27:13 AM Pacific Daylight Time, [EMAIL PROTECTED]
writes:
<<
Your mail server is rejecting valid delivery error messages from our
mail server, presumably due to the use of the null envelope-sender
address on those messages. Internet mail standards require both the
use and the acceptance of the null "mail from:" on messages from
mailer daemon processes.
References:
Simple Mail Transfer Protocol
http://www.rfc-editor.org/rfc/rfc821.txt
Requirements for Internet Hosts
http://www.rfc-editor.org/rfc/rfc1123.txt
Anti-Spam Recommendations for SMTP MTAs
http://www.rfc-editor.org/rfc/rfc2505.txt
--
Paul Russell
Senior System Administrator
University of Notre Dame
----- Original message -----
>
> The original message was received at Fri, 30 Jul 1999 18:02:21 -0500
> (EST)
> from localhost
>
> UNIVERSITY OF NOTRE DAME EMAIL ADDRESSES
> CAN BE FOUND USING THE FOLLOWING WEB URL:
> http://www.nd.edu/~email
>
> ----- The following addresses had permanent fatal errors -----
> <[EMAIL PROTECTED]>
>
> ----- Transcript of session follows -----
> ... while talking to mail.bcwebhost.net.:
> >>> MAIL From:<> SIZE=7368
> <<< 501 bogus mail from
> 501 <[EMAIL PROTECTED]>... Data format error
>
> ---------------------------------------------------------------
> Reporting-MTA: dns; dagger.nd.edu
> Received-From-MTA: X-Unix; [208.8.150.202]
> Arrival-Date: Fri, 30 Jul 1999 18:02:21 -0500 (EST)
>
> Final-Recipient: rfc822; [EMAIL PROTECTED]
> Action: failed
> Status: 5.5.2
> Remote-MTA: DNS; mail.bcwebhost.net
> Diagnostic-Code: SMTP; 501 bogus mail from
> Last-Attempt-Date: Fri, 30 Jul 1999 18:02:22 -0500 (EST)
>
> ---------------------------------------------------------------
>
> Subject: Returned mail: User unknown
> Date: Fri, 30 Jul 1999 18:02:21 -0500 (EST)
> From: Mail Delivery Subsystem <MAILER-DAEMON>
> To: <[EMAIL PROTECTED]>
>
> The original message was received at Fri, 30 Jul 1999 17:59:21 -0500
> (EST)
> from [208.8.150.202]
>
> UNIVERSITY OF NOTRE DAME EMAIL ADDRESSES
> CAN BE FOUND USING THE FOLLOWING WEB URL:
> http://www.nd.edu/~email
>
> ----- The following addresses had permanent fatal errors -----
> <[EMAIL PROTECTED]>
>
> ----- Transcript of session follows -----
> bolt.l: Mailbox does not exist
> 550 <[EMAIL PROTECTED]>... User unknown
>
> ---------------------------------------------------------------
> Reporting-MTA: dns; dagger.nd.edu
> Received-From-MTA: DNS; [208.8.150.202]
> Arrival-Date: Fri, 30 Jul 1999 17:59:21 -0500 (EST)
>
> Final-Recipient: RFC822; <[EMAIL PROTECTED]>
> Action: failed
> Status: 5.1.1
> Last-Attempt-Date: Fri, 30 Jul 1999 18:02:21 -0500 (EST)
>
> ---------------------------------------------------------------
>
> Subject: July Sc email.doc
> Date: Fri, 30 Jul 99 15:53:44 Pacific Daylight Time
> From: "Ring-of-Fire" <[EMAIL PROTECTED]>
> To: "Mary Bolt" <[EMAIL PROTECTED]>
>
> >(*'Y
> bjbjWW==]
> ^``````$OC****.^^*Z*:(,^
> @.#'.T
> Ring-of-Fire July Science Letter
>>
==================================================
(remainder of message clipped)
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