On Mar 20, 2007, at 5:13 AM, Emailer_talk Martin Pickering wrote:
I was surprised to find, after switching to Apple Mail, that the
duplicate messages continued!
Until I discovered that the default setting is "leave messages on
server for 7 days". Once I changed that to "delete immediately",
for all the accounts, the symptom went away.
If you are seeing duplicates when you leave the messages on the
server, then your mail host is broken. This should not happen.
When you tell it to leave messages on the server (using POP
protocol), the mail client makes a list of what messages it has
collected based on, what is supposed to be, a unique message ID. On
the next connection, it checks all the messages on the server, and
any that it has in its list of collected messages, are then skipped.
So if you get one of those a 2nd time, that means your mail host is
changing the ID numbers preventing the mail client from tracking the
message. This is broken behavior (although some mail hosts do it).
-chris
<www.mythtech.net>
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