I have a customer who has exchange 2003. All of the accounts work fine for sending and receiving email inside and outside of the organization. However, I have one user who is remote and uses his phone for email. The phone is setup for POP. He gets his email fine from outside of the office. However, if anyone inside the office tries to send him an email he doesn't get it and they get an error in return. That error says the recepiantant can't be reached. And it says the account doesn't exsist. Where and how do I configure the exchange server to send this email to his account. They are all using the same domain name. He is using POP on his phone. I'm using a program IGetMail to connect to the POP boxes for all the exchange users.