Is there one message which has an extraordinarily higher X-UID than the
ones prior to that?
Spammers and hackers have taken to putting in fake X-UID headers in
messages. This confuses the UID regime, which requires that UIDs be
strictly ascending and that the mailbox keep track of the highest assigned
UID.
You can remedy this problem with a combination of the following measures:
1) Use tmail/dmail to deliver mail instead of the system-supplied
mail.local or procmail. tmail/dmail will remove any counterfeit X-UID
header (and other counterfeit internal headers) prior to delivery.
2) Switch to one of the alternative mailbox formats, such as mix or mbx.
Your webmail client would probably appreciate having the ability to have
more than one IMAP session to the mailbox at a time.
-- Mark --
http://panda.com/mrc
Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.
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