Kenneth <[EMAIL PROTECTED]> wrote:
>
> I want to know more details about the RFC which discuss on the
> empty (null) envelope sender. Can you tell me the RFC number and from
> where I could access the RFC ?
RFC2821, available from http://www.rfc-editor.org/ and various other places.
> I ask because I found that one of my ISP's server will reject
> emails with Return-path <>.
That's in violation of the RFCs, and common sense. RFC2821, section 3.7
(Relaying) states, concerning notification (bounce) messages:
This notification message must be from the SMTP server at the relay host
or the host that first determines that delivery cannot be accomplished.
Of course, SMTP servers MUST NOT send notification messages about
problems transporting notification messages. One way to prevent loops in
error reporting is to specify a null reverse-path in the MAIL command of
a notification message. When such a message is transmitted the
reverse-path MUST be set to null (see section 4.5.5 for additional
discussion). A MAIL command with a null reverse-path appears as follows:
MAIL FROM:<>
There is undoubtedly a better passage to quote than this, but I can't recall
it offhand.
> This make me many inconvenience.
Yes, obviously.
Charles
--
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Charles Cazabon <[EMAIL PROTECTED]>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
Any opinions expressed are just that -- my opinions.
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