How are messages flaged as "already poped"

[Roger]

I move my Outlook 2000 info from one computer to another by copying the
outlook.pst file to a flash drive and then copying onto the other computer.
I prefer doing it this way, rather than just configuring Outlook to use the
flash drive, because the machine I am leaving is still usable.

Mostly this works well, I always have my messages, contacts etc but
sometimes, after making this move, Outlook wants to download all the
messages on my pop server, even those that have been already received.

Is there some way I can flag messages in the Inbox as having already been
poped? How does Outlook keep track of which messages it already has and
which are new?

 

[Diane Poremsky {MVP}]

The message list is stored in a file on the hard drive in Outlook 2000 and
its linked to the acct in outlook on that machine so you can't copy it to
another computer. Newer versions store this file as a hidden message in the
pst, but again, its tied to the acct via a GUID so you can't use it on other
computers. If the second machine does something to delete this hidden
message then the first machine may re-download the messages.

 

[Brian Tillman]

I don't know if the UID history is saved in the .pst file.

If I recall, for Outlook 2000, it was stored in the registry. I believe for
OL 2007 it's a hidden message in the PST that's usable only by the Outlook
instance that wrote it.

 

[Diane Poremsky {MVP}]

Nah, it is stored at C:\Documents and Settings\username\Application
Data\Microsoft\Outlook\MSIN*.RHC in windows xp.

It's tied to the computer GUID though, so you can't move it.

 

[Diane Poremsky [MVP]]

Why would you think this is about 2007 when the OP clearly stated he uses
2000?

I move my Outlook 2000 info from one computer to another by copying the

Brian said it was stored in the registry in 2000. It's not., its in the RHC
file. It doesn't store all the message id's ever downloaded, just the
pointer for the last one downloaded.

I believe Outlook 2000 was the last yr they used the file. Now it's a hidden
Mailbox manager message in the pst.

 

[Roger]

Thank you both for a very interesting discussion. I just copied my
outlook.pst file and took it to a computer that had not been used for
several months. I did send and receive and it only pulled down the messages
that were not in the outlook.pst file that I had brought from the other
machine.

I think the reason that this process fails sometimes may have something to
do with the hash value. I believe that the hash values must be in the
outlook.pst file since that is all I take and it usually works. If it fails
it wants to pop all the messages on the server, meaning that none of the
hash values match. My suspicion is that outlook must create the hash values
for the messages stored on the server each time you connect and then compare
them with the value in the outlook.pst file. The question is what does
Outlook use to create the hash value? For some reason, it must create
different hash values on the machine with the copied pst file, but only
sometimes.

Roger