On 2008-05-12 09:17, James Green wrote: > Tom Kistner wrote: > > > Wedged TCP connections after some 10-500k of data usually point to > > window scaling problems. But since you already turned that off (on the > > sending server?), I guess it is a dumb snort-like traffic mangler "IPS" > > that generates false positives. Try to get a contact on the receiving > > side. :) > > Bizarrely, this is happening with several receiving hosts -- I'm > becoming more convinced this isn't an issue with my mail server > configuration, but on the other hand it's not an issue I've run into > anywhere else. > > After a bit more googling I've tried fiddling with > tcp_workaround_signed_windows as well as tcp_window_scaling, but no joy > -- any further suggestions would be most welcome, although I fear this
> issue is rapidly moving away from on-topic for an Exim mailing list. > > All the best, > > James > > We are seeing this kind of problem with some sites - so far only 4 or 5 have come to light. I am running SLES9 and do tcp_window_scaling=0 in /etc/sysctl.conf how will that affect e-mail delivery and receipt in general? The problem we are having is if the message size is > 32kb. And our tcp_wmem has the following value: 4096 16384 131072 I know it is a bit Out of Topic - but I am sure somebody can give me some idea? Regards Sujit Choudhury -- The University of Westminster is a charity and a company limited by guarantee. Registration number: 977818 England. Registered Office: 309 Regent Street, London W1B 2UW, UK. -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
