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: <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]> (original mail from [EMAIL PROTECTED]) ; 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 <[EMAIL PROTECTED]> for avr-chat@nongnu.org; Sun, 31 Jul 2005 12:54:31 +0530 (IST) Date: Sun, 31 Jul 2005 12:54:33 +0530 From: Royce & Sharal Pereira <[EMAIL PROTECTED]> Subject: UART with internal RC osc. To: AVR-CHAT <avr-chat@nongnu.org> Reply-to: [EMAIL PROTECTED] Message-id: <[EMAIL PROTECTED]> 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: avr-chat@nongnu.org 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;avr-chat@nongnu.org Final-recipient: rfc822;avr-chat@nongnu.org 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: <[EMAIL PROTECTED]> 250 Requested mail action okay, completed. rcpt to: <[EMAIL PROTECTED]> 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. _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/support/?func=detailitem&item_id=104528> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/ _______________________________________________ Savannah-help-public mailing list [EMAIL PROTECTED] http://lists.gnu.org/mailman/listinfo/savannah-hackers