What mail server did this come from?
This command extension is only valid in ESMTP, meaning the server started
with EHLO, (not HELO).
RFC 1891, section 5.3 allows only two valid values on the RHSide, and
"HDR" is not one of them. This should be "RET=HDRS" or "RET=FULL" in
section:
5.3 The RET parameter of the ESMTP MAIL command
The RET esmtp-keyword on the extended MAIL command specifies whether
or not the message should be included in any failed DSN issued for
this message transmission. If the RET esmtp-keyword is used, it MUST
have an associated esmtp-value, which is one of the following
keywords:
FULL requests that the entire message be returned in any "failed"
delivery status notification issued for this recipient.
HDRS requests that only the headers of the message be returned.
Methinks the mail server that shoveled this your way is broken.
-bryan
---------------------
On Mon, 5 Jul 1999, St�phane Bec wrote:
>
> Hello,
>
> I would like to know if anyone here have seen this error before.
> It looks like there is a bad argument in SMTP query but I don't know why...
> Ideas ???
>
> 07:02 16:02 SMTP-(000000D5) >MAIL From:<[EMAIL PROTECTED]> RET=HDR
> ENVID=33612683
> 07:02 16:02 SMTP-(000000D5) 501 <[EMAIL PROTECTED]>... Bad argument "HDR" to
> RET
> 07:02 16:02 SMTP-(000000D5) ERR undeliverable 501 <[EMAIL PROTECTED]>... Bad
> argument "HDR" to RET
> 07:02 16:02 SMTP-(000000D5) SMTP_DELIV_FAILED
> 07:02 16:02 SMTP-(000000D5) >QUIT
>
> Thanks,
>
> Stephane Bec
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