Mailing List Message #97228
From: Massimo Bolzoni <>
Subject: Re: Problem with long delays with the MAPI plugin
Date: Wed, 11 Feb 2009 12:30:55 +0100
To: CommuniGate Pro Discussions <>
X-Mailer: Apple Mail (2.930.3)

Il giorno 10/feb/09, alle ore 15:18, Hansjoerg Morandell ha scritto:

Hi all,
we use the MAPI Connector together with Outlook 2003. Before we used normal IMAP connections.
We experience great delays in loading the Outlook folders, and also long delays when navigating from one folder to another. To switch from one folder to another it often takes 4 to 6 seconds for the first time, and after it takes about 1 or 2 seconds, and often we get the "Server transaction in progress" mask. This causes also to "freeze" Outlook very often and to block it completely.
I have made also a sniffing with wireshark, the IMAP connection with the MAPI plugin seems pretty much ok, but the delay then comes in probably when Outlook is displaying the emails. I also noticed a lot of "Bad checksum" segments with Wireshark.
I use the following configuration on my MAPI plugin:
- Local cache instead of global cache
- always load the whole message not just the header

Have You also set to sync all folders and not only Inbox on send/receive ?
This should prevent OL to update a folder while You are opening it ... because already opened ad the opening of OL itself.... obiuvsly this mean that the firsty time You open OL You nee dto wait "a bit" more :-) 


Is this normal that using the MAPI plugin it causes such delays or is something wrong just with my configuration?


Hansjoerg Morandell


Massimo Bolzoni - Solution Architect
Polyserve Inc. - Matrix Server -
CommuniGate System GMBH - CommuniGatePro -
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