Indraneel Majumdar [Sunday, March 04, 2001 10:22 AM]:
> What is this stuff that I get back every time I post to li-general? (some
> godsend error to force posting to li-help instead?) I can't trace any
> errors on my side.
Definitely not on your side. See below ...
>> The original message was received at Sat, 3 Mar 2001 19:53:55 -0800
>> from sourcenat1.bigmailbox.com [209.132.220.250]
^^^^^^^^^^^^^^^^^^^^^^^^^
Bigmailbox.com is a third party webmail provider which hosts mail services
for namezero.com (which in turn hosts k2mail.net).
This guy has (or rather, had) an account on k2mail using which he subscribed
to the list. When he deleted the account, bigmailbox's server started
bouncing back mails with the 550 (permanent failure) response below:
>> ----- Transcript of session follows -----
>> 550 5.1.1 <[EMAIL PROTECTED]>... User unknown
>> Reporting-MTA: dns; mailrecv20.bigmailbox.com
>> Received-From-MTA: DNS; sourcenat1.bigmailbox.com
>> Arrival-Date: Sat, 3 Mar 2001 19:53:55 -0800
> Return-Path: <[EMAIL PROTECTED]>
^^^^^^^^^^^^^^^^^^^
That is how bigmailbox / namezero is rewriting the return path. On the
other hand, my copy of the LIH post which generated this bounce has
> Return-Path:
<[EMAIL PROTECTED]>
Note that it's generated on the fly with my address coded into it ... a
technique called VERP used by mailing list servers for bounce processing.
Bigmailbox seems to have a misconfigured sendmail which ignores this return
path and delivers bounces along the From: / Reply-To: header.
Thaths, could you please send a lart towards [EMAIL PROTECTED] /
[EMAIL PROTECTED]? Or just don't bother, and block them off.
Speaking from personal experience, you are going to get a clueless
autoresponder (namezero's member service has been sending autoresponders to
our mailer daemon for the past few weeks).
-s
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