This question was brought up in a round about way from another question. Outlook has the setting "leave a copy of mmessages on the server". The intent is simple. Leave it there so I can check it from other computers, phones, whatever and receive the e-mails at different locations.
My question would be once I have checked and received e-mails from one computer (in Outlook) how does Outlook know not to re-download them again? Is it some flag in Outlook like "do not download duplicate e-mails"?
It sure looks like it is all Outlook. If you look at the sub-options to "Leave a copy of messages on the server" they are 1) Remove from server after XX days and 2) Remove from server when deleted from 'deleted items'
Outlook must be doing a whole lot of checking behing the scenes. The original question was... if I set up a new Outlook profile is there any way I can keep from receiving e-mails that were left on the server but already received by another profile. My guess would be no but I think it would all depend on how Outlook knows if it already received a particular e-mail. If it kept track by some "database" I suppose you could copy that "database" to another profile. Exactly how does it work?