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Re: What does "452 Can't Parse Sender Address" mean?

To: Pok Ng <pok@CCS.YorkU.CA>
Subject: Re: What does "452 Can't Parse Sender Address" mean?
From: Andy Poling <andy@jhunix.hcf.jhu.edu>
Date: Thu, 22 Apr 1993 18:53:42 +0300
cc: zmailer@cs.toronto.edu
In-Reply-To: <9304221140.ZM6014@CCS.YorkU.CA>

On Thu, 22 Apr 1993, Pok Ng wrote:
> smtp/[130.63.231.101]:
> 	 2100:   452 Can't Parse Sender Address
>           id    <dig-Aviation-6.8@mc.lcs.mit.edu>
>           from  <@mc.lcs.mit.edu:aviation-request>
>           to    syeon@ASIMOV.CALUMET.YORKU.CA
> 
> and zmailer won't deliver the message. Any idea what "452 Can't Parse Sender
> Address" means?

That error is coming from the remote site via the SMTP conversation and
they are probably running sendmail.  As I recall, sendmail gives that
error when it cannot resolve the envelope sender address to a "mailer".

-Andy

Andy Poling                              Internet: andy@jhunix.hcf.jhu.edu
UNIX Systems Programmer                  Bitnet: ANDY@JHUNIX
Homewood Academic Computing              Voice: (410)516-8096    
Johns Hopkins University                 UUCP: uunet!mimsy!aplcen!jhunix!andy

References:
- What does "452 Can't Parse Sender Address" mean?
  - From: "Pok Ng" <pok@CCS.YorkU.CA>

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