Re: [IMail Forum] Empty envelope sender (IMail v6.05; newest patchings; WinNT4.0)

[NetQuick Mail Administration]

Your setup to reject messages with blank sender addresses.  Many mailer
daemons and servers send rejection and error messages this way.  While this
does prevent spam being received that is sent that way it also precludes
your receiving error and bounce messages.

Kevin Childers


----- Original Message -----
From: "Jason Grant" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, January 19, 2001 5:32 PM
Subject: [IMail Forum] Empty envelope sender (IMail v6.05; newest patchings;
WinNT4.0)


> Recently, I received this message.
>
> Would someone be able to explain this to me?
>
> Thank you kindly,
>
> ==================================================
> Jason Grant
> System Administrator at Norlink Communications and Consulting
> 428 E. Victoria Ave. Thunder Bay, Ontario Canada. P7C 1A5
> Voice:(807)622-5465 ext.114 Fax: (807)622-8220
> Email: [EMAIL PROTECTED] WWW: http://www.norlink.net
> Helping Businesses Succeed on the Internet
>
>
> >
> >
> > Greetings.
> >
> > Your mail server is rejecting valid email bounce messages that are sent
> > with an empty envelope sender (AKA reverse path).  According to RFC
> > 1123, "Requirements for Internet Hosts", section 5.2.9:
> >
> >          The syntax shown in RFC-821 for the MAIL FROM: command omits
> >          the case of an empty path:  "MAIL FROM: <>" (see RFC-821 Page
> >          15).  An empty reverse path MUST be supported.
> >
> > Please fix your server to accept these messages, as they are required
> > for proper notification of rejected email to your users.
> >
> > This document is available from:
> > http://info.internet.isi.edu/in-notes/rfc/files/rfc1123.txt
> > --
> > Bruce Guenter, Network and Systems Specialist
> > Peragis, Inc.                                    http://www.peragis.com/
> > Phone:(306)934-6419 x34  Fax:(306)934-5550        <[EMAIL PROTECTED]>
> >
>
>
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