We have a setup where we have the POP3 accounts on the workstations along with Exchange accounts (just using exchange for in house email). POP3 set as the default - so bringing/sending external email directly from the users computer. All worked great for more than a year. POP3 email still comes in fine. Sending POP3 email works fine too - except when the recepient attempts to reply to it - it now has the address of the sender's local domain - example - jeagle@mydomain.local - and it will just give the person replying a bounce back. One of the users still works fine - but the rest are getting this when sending. Everything looks as it should - even compared the working user/computer to the rest. Any ideas? Thanks