On Tue, 29 Nov 2005, Matthew Byng-Maddick wrote:

> On Tue, Nov 29, 2005 at 09:53:35AM +0000, Stephen Gran wrote:
> >>   SMTP<< 250 2.1.0 [EMAIL PROTECTED] OK
> >>   SMTP<< 250 2.1.5 [EMAIL PROTECTED]
> >>   SMTP<< 354 Start mail input; end with <CRLF>.<CRLF>
> >>   SMTP<< 454 5.7.3 Client does not have permission to Send As this sender.
> > Note that this temp rejects after data.

The original question said:
 ___
/
  SMTP<< 235 2.7.0 Authentication successful.
  SMTP>> MAIL FROM:<[EMAIL PROTECTED]> SIZE=1350 [EMAIL PROTECTED]
  SMTP>> RCPT TO:<[EMAIL PROTECTED]>
  SMTP>> DATA
  SMTP<< 454 5.7.3 Client does not have permission to Send As this sender.
  SMTP>> QUIT
\___

> Note also that these are not Exim error messages, as exim doesn't 
> use extended status codes.

The use of a status of 4xx in conjunction with an extended status of 
5.something seems to be absurd, no?

> This is a problem with what you're sending in the MAIL FROM:<> SMTP 
> command, and is dependent on the site policy of the system you are 
> connecting to.

The original question appeared to be trying to use an unqualified 
domain in their envelope sender - doesn't look good to me.

> Before continuing, you'd do better to find out what 
> this site policy is...

Fair comment, but I can't believe that applying one's normal retry 
strategy in response to the 4xx status is going to be useful.  As 
such, I'd tend to rate this response as a rogue.  The status they 
returned *should* have been 5xx, in my view.

cheers

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