We are have POP3 Mail that is hosted externally and now we do have exchange and would like to utilise this. So we found that for the transition we are using POP3 connector. We decide to go this path due to we have users (let say email@example.com) that mainly never being at the office at all and the only to access email just through a pop3.
My account (firstname.lastname@example.org) is actually setting up internally using POP3 connector and the difficulty that I have is that I counld's send from my email to those guys (email@example.com). The email (firstname.lastname@example.org) is somehow store in the internal mailbox for those guys instead of relaying to the external POP3 address.
How do handle this? We can't utilise Ms Exchange 100% as yet due to the infrastrcuture unrealiable in term broadband connection as well handling spamming (free one) so we have to leave this to our ISP but we would like to utilise Ms Exchange.