On an otherwise stable and reliable SBS 2003 install, fully patched up to date, there are a couple users who need POP access to Exchange mailboxes and are using OE. Sometimes, the POP sessions are smooth and rapid, but mostly they time out and I can't see any reason why they should.
Nothing in the logs re the failed POP sessions.
Access via OWA is fine as is Outlook via RPC over HTTP and all other remote access types. Just POP mail.
Any suggestions? I realise this is none too easy as there is no concrete scenario where it fails, Just hoping someone else has experienced similar.