Yes I have heard of that but this seemds to be a authentication issue,
not a network flood
I know that dovecot has configuration options to make LookOut! work:
# Workarounds for various client bugs:
# oe6-fetch-no-newmail:
# Never send EXISTS/RECENT when replying to FETCH command. Outlook
Express
# seems to think they are FETCH replies and gives user "Message no
longer
# in server" error. Note that OE6 still breaks even with this
workaround
# if synchronization is set to "Headers Only".
# outlook-idle:
# Outlook and Outlook Express never abort IDLE command, so if no mail
# arrives in half a hour, Dovecot closes the connection. This is
still
# fine, except Outlook doesn't connect back so you don't see if
new mail
# arrives.
You might need to do some googling.
Cheers,
Mikal
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