The problem should be fixed now. Let's hear it for the OSL guys! From: Rob Henderson <robh@cs.indiana.edu> Date: July 26, 2005 8:50:35 AM MDT To: Jeff Squyres <jsquyres@osl.iu.edu> Cc: OSL Sysadmin <osl-sysadmin@osl.iu.edu>, Bruce Shei <shei@cs.indiana.edu> Subject: Re: boost mailing lists I wanted to let you know that I think I've figured out what is going on with the recent slowness with email to the mailman lists that was reported. The email address xxx@xxxx that is on the boost list appears to have some kind of anti-spam tarpit set up that is catching milliways. Email to this address is handled by mail.tapeinternational.no and it you telnet to port 25 on this host from milliways you will see that it is (I assume) deliberately slow. During the initial '220' response, it is sending characters at a rate of about one character per 30 seconds. This keeps the connection from milliways moving along at a rate sufficient to keep it from timing out but slow enough that delivery is taking hours. If you telnet to port 25 from any other CS/OSL host the response is very fast so it is clearly set up to catch milliways. I don't know why they have done this, but I'd say the options are to either remove that user from the list or contact them and try to get them to stop this. Please let me know if there is anything else I can do related to this issue. We have disabled delivery to the offending email address and notified its owner. -- Dave Abrahams Boost Consulting www.boost-consulting.com