I receive &Connection Timed Out& for every outgoing mail that tries to access a remote mailserver. After running exim in debug mode it disconnects right after connection, here's a log:

smtp.service.ohio-state.edu [128.146.216.42] status = usable
host in ? no (option unset)
delivering 18DerZ-0001Cc-00 to smtp.service.ohio-state.edu [128.146.216.42] (gemma.7@osu.edu)
set_process_info: 4627 delivering 18DerZ-0001Cc-00 to smtp.service.ohio-state.edu [128.146.216.42] (gemma.7@osu.edu)
Connecting to smtp.service.ohio-state.edu [128.146.216.42.25] ... SMTP&& QUIT
SMTP&& 221 w3.istacia.com closing connection
search_tidyup called

This occurs with EVERY outgoing email, to EVERY remote mail server ... anyone have any idea? My mail queue is getting huge because of this error.