Duplicate emails via POP3

T

Tom wilson

We have a machine here with like, 5 email accounts on it. They're all
POP3 definitions plus one Exchange Server definition set to cached
mode. The idea here is that this person can pick up mail from
multiple sources using the same machine and mailbox.

When he's at home and does a send/recieve, he gets duplicate emails in
his inbox. I've seen this before. He has a POP3 definition and an
Exchange Server definition for the same place. So when he's in the
office and is connected to Exchange, he gets the say, 20 emails sent
to him throughout the day. Fine. Then he goes home and does a POP3
pickup for the same server. I've learned that the 'last message read'
pointer for POP3 is not the same as that for Exchange. So he gets
today's 20 emails again, this time via POP3. This is likely the root
of the problem.

But how to solve it? He needs to connect directly to exchange while
in the office for shared calendar purposes. He also needs to do POP3
pickups from home. But how can I get this to work without him
receiving duplicate emails?

Thanks!
 
B

Brian Tillman

Tom wilson said:
When he's at home and does a send/recieve, he gets duplicate emails in
his inbox. I've seen this before. He has a POP3 definition and an
Exchange Server definition for the same place. So when he's in the
office and is connected to Exchange, he gets the say, 20 emails sent
to him throughout the day. Fine. Then he goes home and does a POP3
pickup for the same server. I've learned that the 'last message read'
pointer for POP3 is not the same as that for Exchange. So he gets
today's 20 emails again, this time via POP3. This is likely the root
of the problem.

Sounds correct. He's not using POP to access the Exchange mailbox in the
office.
But how to solve it? He needs to connect directly to exchange while
in the office for shared calendar purposes. He also needs to do POP3
pickups from home.

Why does he need to do POP connections from home? Instead a VPN would allow
him to work exactly as if he were in the office. Exchange also supports
IMAP access, which also leaves messages on the server. Finally, depending
on your version of Exchange and Windows, you can create an RPC over HTTP
connection to the Exchange server and operate exactly like in the office.
 

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