procedural: double confirmation

Mark A. Mandel mamandel at LDC.UPENN.EDU
Fri Jan 23 19:34:25 UTC 2004

I sent this message to ADS-L-Request at, but it bounced
(vide infra). Help, please.

I've had some issues with getting the "From" domain matched up with my
subscriptions here, but I think I have it straightened out, including
with ADS-L. But I just received two copies of an acknowledgement,
identical except for ID strings in the headers. I've prefixed an
asterisk to the lines with a difference in the first quote.

-- Mark A. Mandel

---------- Forwarded message ----------
Date: Fri, 23 Jan 2004 13:32:44 -0500 (EST)
From: Mail Delivery Subsystem <MAILER-DAEMON at>
To: mamandel at
Subject: Returned mail: see transcript for details

The original message was received at Fri, 23 Jan 2004 13:32:44 -0500 (EST)
from localhost []

   ----- The following addresses had permanent fatal errors -----
<ADS-L-Request at>
    (reason: 550 5.7.1 <ADS-L-Request at>... Relaying denied)

   ----- Transcript of session follows -----
... while talking to
>>> RCPT To:<ADS-L-Request at>
<<< 550 5.7.1 <ADS-L-Request at>... Relaying denied
550 5.1.1 <ADS-L-Request at>... User unknown

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