At 8:54 AM -0700 9/30/02, Warren Michelsen imposed structure on a stream of electrons, yielding: >At 1:22 PM -0400 09/29/2002, Bill Cole wrote: >>At 7:11 AM -0700 9/29/02, Paul Didzerekis imposed structure on a >>stream of electrons, yielding: >>>Hello, >>> >>>We have a client who uses another company for access and SMTP >>>service. They are not able to send us any email and I think it is >>>because something is broken at the sending MTA. From what I can >>>tell it looks like the sending MTA is timing out and disconnecting >>>the connection while our SIMS box is looking up theirs in the >>>blacklists. >> >> >>That looks right. It looks like the other side has a 30 second >>timeout on EHLO response, and SIMS isn't even getting around to >>reading that EHLO within 30 seconds. >> >>That's a very dumb timeout length, especially in the modern world >>where MTA's typically do 2 or more DNS queries at the start of an >>SMTP session. I'd bet that these people have far more problems than >>just your site. > >Is that what's happening here too? > >One of my clients has been experiencing problems receiving email >from someone at a webTV account. > >The log typically shows: > > >14:44:11 4 SMTP Line 41250 created for answering >14:44:11 4 SMTP-250() Got connection from [209.240.212.83:61700] >14:44:11 4 SMTP(tcp) Connection accepted from >[209.240.212.83:61700], seq=38979, 10/11 >14:44:11 4 SMTP-250([209.240.212.83]) Sending 220-Stalker Internet >Mail Server V.1.8b9d11 is ready.\r\n220 ESMTP is spoken here. You >are welcome\r\n >14:44:11 4 SMTP-250([209.240.212.83]) Looking for >83.212.240.209.relays.osirusoft.com >14:44:11 4 SMTP-250([209.240.212.83]) Looking for >83.212.240.209.relays.visi.com >14:44:11 4 SMTP-250([209.240.212.83]) Looking for >83.212.240.209.relays.orbd.org >14:44:40 4 SMTP-250([209.240.212.83]) Input Line: EHLO >smtpout-2001-3.public.lawson.webtv.net\r >14:44:40 4 SMTP-250(smtpout-2001-3.public.lawson.webtv.net) Looking >for smtpout-2001-3.public.lawson.webtv.net >14:44:40 4 SMTP-250(smtpout-2001-3.public.lawson.webtv.net) Sending >250-mail.MDCCLXXVI.com is pleased to meet >you\r\n250-HELP\r\n250-ETRN\r\n250-AUTH=LOGIN\r\n250-AUTH LOGIN >PLAIN CRAM-MD5\r\n250 EHLO\r\n >14:44:40 4 SMTP-250(smtpout-2001-3.public.lawson.webtv.net) Nothing >read - stream closed >14:44:40 4 SMTP-250(smtpout-2001-3.public.lawson.webtv.net) Input Stream ended >14:44:40 3 SMTP-250(smtpout-2001-3.public.lawson.webtv.net) Abort >Received, reason=54 >14:44:40 4 SMTP disposing line 41250 > >It would seem that at 14:44:40, an awful lot happens and either SIMS >gives up on web TV or vice versa. No sooner do we send "...pleased >to meet you" than we bail out noting "Nothing read". Should this be >happening so quickly after "...pleased to meet you"?
No, but it isn't happening quite as the log implies. SIMS sends the banner at connect and then starts doing the DNSBL lookups. Meanwhile the other end sends a EHLO command, but SIMS doesn't bother looking for it until it has finished with those lookups. By the time it does read that line, the other end has also closed the session out of impatience, and SIMS sees the stream end right after the EHLO line. -- Bill Cole [EMAIL PROTECTED] ############################################################# This message is sent to you because you are subscribed to the mailing list <[EMAIL PROTECTED]>. To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> To switch to the INDEX mode, E-mail to <[EMAIL PROTECTED]> Send administrative queries to <[EMAIL PROTECTED]>
