Thanks for your comments.  

I didn't think I had anything else touching the mailbox files.  I use Outlook Express 
on a PC which uses pop3 and SquirrelMail which uses imap.  Pine is installed on the 
linux box, but I rarely use it (and I guess it's safe).  I contempated installing 
spamassassin a while back, but didn't think I actually did it.  However, I do see a 
process "spamd" running.  Hmmm.

Further looking indicates that spamassassin has been installed and running for a long 
time.  I'll try killing it, deleting all messages in my inbox, and see what happens.  
Do you know if spamassassin is based on the c-client library?

Funny thing is the first such message I see in the log was reported on Sept 26th at 
1:30pm.  I was gone for the week prior to that (got home the 27th).  My point is that 
I couldn't have altered the configuration - even unknowningly.  Since that point, I 
get the message in my log file everyday - sometimes multiples messages in a day.

I did see the following message in the same log report, which I don't recognize...

    Did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA:
        80.143.199.79     :    1 Time(s)

Could that be related?

Mark





----- Original Message ----- 
From: "Mark Crispin" <[EMAIL PROTECTED]>
To: "Mark Champion" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, October 06, 2003 9:36 PM
Subject: Re: Message 186 UID 361 greater than last 189 ???


> On Mon, 6 Oct 2003, Mark Champion wrote:
> > > I understand that message UID order is somehow mixed up, but I don't
> > > know how to fix it.
> 
> You can't fix it.  All you can do is prevent it from happening again.
> 
> You are almost certainly using traditional UNIX mailbox format.
> 
> Something other than [imapd | ipop3d | pine | other program based upon the
> c-client library] is manipulating your mailbox file(s).  In the error
> message that you reported, the 186th message has a UID of 361.  This is
> reasonable, except that the mailbox metadata reports that the highest
> assigned UID in the mailbox is 189.
> 
> The c-client library always updates the "highest assigned UID" when
> adding a message with a UID.  Consequently, something else put that
> message there.
> 
> Perhaps you have spam filter software which, after a mailbox has been
> opened, goes through the mailbox and copies messages to another mailbox.
> If that spam filter is not based upon the c-client library, it may not
> know better than to copy the X-UID: header.
> 
> The solution is to fix things so that whatever entity is playing with your
> mailbox file is forbidden to touch "old messages" which have a UID
> assigned.
> 
> If Squirrelmail is accessing your mailbox file directly, see if it can be
> made to use POP3 or IMAP instead.
> 
> -- Mark --
> 
> http://staff.washington.edu/mrc
> Science does not emerge from voting, party politics, or public debate.
> Si vis pacem, para bellum.

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