Outlook 2002 IMAP4 Connection Dropped

[Dave]

I'm seeing relatively frequent dropped connections with
WinXP Outlook 2002 client accessing mail via IMAP4 on a
Netscape server. I've seen other similar posts, so I
don't think this is a unique problem. I've got Outlook
logging enabled. Can anyone suggest a resource to
interpret the log messages? I see a pattern with the ae =
3 changing to ae = 7 before the connection is dropped,
but I'm having a hard time determining what "ae" stands
for (have searched Web, RFCs, etc.).

Thanks for any pointers.

MAP4 service (Netscape Messaging Server 4.1 Patch 1
(built Nov 15 1999))

IMAP: 08:06:55 [db] OnNotify: asOld = 5, asNew = 5, ae = 3
IMAP: 08:06:55 [rx] 002V OK Completed
IMAP: 08:08:55 [tx] 002W NOOP
IMAP: 08:08:55 [db] OnNotify: asOld = 5, asNew = 5, ae = 3
IMAP: 08:08:55 [rx] 002W OK Completed
IMAP: 08:09:55 [db] OnNotify: asOld = 5, asNew = 5, ae = 7
IMAP: 08:09:56 [tx] Dropping connection, LOGOUT sent
IMAP: 08:09:56 [db] Connection to '' closed.
IMAP: 08:09:56 [db] OnNotify: asOld = 5, asNew = 0, ae = 5