Re: [Savannah-help-public] [sr #104528] SMTP sender verification appears to have a too short timeout

[Sylvain Beucler]

Hello Justin,

We received the following request at Savannah regarding the mail
system.

Can you have a look at it?

-- 
Sylvain

> URL:
>   <http://savannah.gnu.org/support/?func=detailitem&item_id=104528>
> 
>                  Summary: SMTP sender verification appears to have a too short
> timeout
>                  Project: Savannah Administration
>             Submitted by: None
>             Submitted on: Wed 08/03/05 at 19:37
>                 Category: Mail server
>                 Priority: 5 - Normal
>                 Severity: 3 - Normal
>                   Status: None
>                  Privacy: Public
>              Assigned to: None
>         Originator Email: 
>         Platform Version: None
>              Open/Closed: Open
> 
>     _______________________________________________________
> 
> Details:
> 
> I've been getting a complaint by one of the subscribers to
> some AVR-related lists (avr-chat, avr-gcc-list) that none
> of his emails make it through the nongnu.org list server.
> He's getting the following bounce:
> 
> This report relates to a message you sent with the following header fields:
> 
>     Return-path: <address@hidden>
>     Received: from tcp-daemon.pop.mtnl.net.in by pop.mtnl.net.in
>      (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004))
>      id <address@hidden> (original mail from
> address@hidden)
>      ; Sun, 31 Jul 2005 12:54:43 +0530 (IST)
>     Received: from royce ([59.182.8.199])
>      by pop.mtnl.net.in (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14
> 2004))
>      with ESMTPA id <address@hidden> for
> address@hidden; Sun,
>      31 Jul 2005 12:54:31 +0530 (IST)
>     Date: Sun, 31 Jul 2005 12:54:33 +0530
>     From: Royce & Sharal Pereira <address@hidden>
>     Subject: UART with internal RC osc.
>     To: AVR-CHAT <address@hidden>
>     Reply-to: address@hidden
>     Message-id: <address@hidden>
>     MIME-version: 1.0
>     Content-type: text/plain; format=flowed; delsp=yes; charset=iso-8859-15
>     Content-transfer-encoding: 7BIT
>     User-Agent: Opera M2/8.02 (Win32, build 7680)
> 
> Your message cannot be delivered to the following recipients:
> 
>     Recipient address: address@hidden
>     Reason: Remote SMTP server has rejected address
>     Diagnostic code: smtp;550 Sender verify failed
>     Remote system: dns;mx10.gnu.org
> (TCP|202.159.228.5|46134|199.232.76.166|25) (monty-
> python.gnu.org ESMTP Exim 4.34 Sun, 31 Jul 2005 03:34:53 -0400)
> 
> riginal-recipient: rfc822;address@hidden
> 
> Final-recipient: rfc822;address@hidden
> 
> Action: failed
> 
> Status: 5.0.0 (Remote SMTP server has rejected address)
> 
> Remote-MTA: dns;mx10.gnu.org (TCP|202.159.228.5|46134|199.232.76.166|25)
> 
>    (monty-python.gnu.org ESMTP Exim 4.34 Sun, 31 Jul 2005 03:34:53 -0400)
> 
> Diagnostic-code: smtp;550 Sender verify failed
> 
> Using a different sender address, it (obviously) works.  I
> tried the address specified, and it seems the target MTA
> requires quite a bit of time after the `rcpt to' command
> to decide about the validity of the request, but eventually
> (after something like 45 seconds) gives a positive response:
> 
> % telnet 202.159.228.19 25
> Trying 202.159.228.19...
> Connected to mx1.mtnl.net.in.
> Escape character is '^]'.
> 220 mtnl-av SMTP service ready
> helo uriah.heep.sax.de
> 250 Requested mail action okay, completed.
> mail from: <address@hidden>
> 250 Requested mail action okay, completed.
> rcpt to: <address@hidden>
> 250 Requested mail action okay, completed.
> quit
> 221 mtnl-av closing transmission channel
> Connection closed by foreign host.
> 
> It responds a lot faster at a second attempt.