Outlook 2007 is extremely slow in receiving POP3 email

[Warren]

I have a modern quad-core PC running Vista Business x64 with Office
Enterprise 2007 installed, with SP2 and all other updates applied. I have
been experiencing problems with Outlook 2007, specifically the extremely long
time that it takes to receive new emails from a POP3 server.

I have read and tried numerous suggestions posted online, all to no avail. I
am currently sitting with a brand-new PST file (completely empty), no add-ins
other than Windows Search, a new profile, a modified TCP stack, and I still
cannot get a 1MB email to download in a reasonable time (< 10 secs).

In my case, when I do a "send/Receive", the status quickly goes from
"Send/Receive Status 50%" to "Send/Receive Status 33%" but then sits for 20
seconds before changing to "Receiving message 1 of 1 (42 B of 1.01 MB)" and
then another 20 second wait before showing "Receiving message 1 of 1 (83 B of
1.01 MB)". (At this point I cancel the send/receive so that I can retry again
later after attempting some new potential fix).

Please let me know if you have any suggestions.

 

[Warren]

After much effort into researching this problem (I installed new versions of
Vista Bus x64, Vista Bus x32, XP PRo x32 and on each of these PCs I tried
Outlook 2007, Outlook 2003 and even Outlook Express), I eventually discovered
that the mail server was set to create a diagnostic log for each POP3
connection, which was the cause of the dramatic slowdown.

After I turned off diagnostic logging on the mail server, the problem was
resolved and all installations were downloading email messages without any
significant delays.

Problem resolved. Thanks.