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natediggs

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Hi Everyone,

I'm entertaining the idea of moving off of Scalix and onto Kerio for my business. I've setup the Kerio server, moved our accounts over and everything works great for the most part. Kerio does some things SO much better than Scalix. We've been having one main problem though. Outlook, after switching to Kerio, is incredibly slow. Switching from folder to folder sometimes takes 5+ minutes. If I switch from my Inbox to my calendar I can count on waiting at least 5 minutes. Inbox to Sent items? 5+ minutes.

Anything I can do here to speed this up? My mailbox is pretty big at 650 MBs. But I have customers that have mailboxes in the 1.5GB range and I need Kerio to work effectively in Outlook for them.

Any help would be greatly appreciated.
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KCAP

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Hi,

Are the clients and server located on the same location?
The KOC isn't really working when the server is co-located (accessed by internet line), and the users off site.
Better to use the Kerio offline connector. It caches all and only sync's the changes.

A other solution is, (the size of the mailbox isnt really relevant more the amount of files/mails), to make subfolders in Outlook, Let the 'inbox-in' folder only exist with new mails, move the mails after reading to a sub folder, this speeds up the KOC.

Teun

Teun
KCAP [NL]
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natediggs

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The server is colocated and I'm using the "offline" version of the connector. At least I thought I was. Is there any setting I need to change to make sure I'm using it in "offline" mode?
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natediggs

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OK, it worked great for about an hour after emptying the cache. Now it's black to being incredibly slow again. Anyone have any advice? My computer is a Core 2 duo with 4GBs of RAM so the issue isn't the processing/memory of the laptop.
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gbrown100

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Have you stopped the local virus scanner checking the local cache?

Does it still behave slowly if you are not connected to the internet?
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natediggs

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After receiving this response I decided to disconnect the computer from the internet and uninstall any anti-virus software. After doing that it is still very slow. The speed of Outlook did not improve at all.
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TorW

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What happens when you move most of the mail from the inbox to subfolders? We've had a few users experiencing a much more snappy Outlook after organizing their account a bit ...
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nikdom

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Hi everyone,
did anyone fix this? I have the same problem since the beginning of 2010. Perhaps it is a 2010-problem?!

btw: i'm using subfolders in my inbox. the main issue is the calendar which is very slow.

[Updated on: Wed, 20 January 2010 12:15]

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mbmaplethorpe

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Hello,

It's also very slow for the majority of our users - Outlook 2007, Windows XP (32-bit) and Windows 7 (64-bit).

Preventing our av clients from scanning the cache file (.FDB) and trying to get users to break their inbox into sub-folders has helped but it's still a source of much contention.

Calendars are also very slow as is searching for emails which sometimes stops working or crashes Outlook.

I'm hoping v7 might go some way to helping with these issues unless Kerio can suggest something else to try?

Mark
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davenet

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Reading through this thread concerns me a bit. I'm looking for a solution to offer clients that gives them an Exchange-like solution but without Exchange. I'm currently running Scalix as well, but just started looking at Kerio. If the performance is a real issue that will certainly be a problem for me. I am testing the new v7 product. But I don't have a sufficiently large mailbox to test with. I guess I will keep a tab on this thread.
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Simple

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I have the same problems with Outlook XP and KOC without caching.

When users send an email, at the moment they click "Send", Outlook is freezing for some seconds to more than 5 minutes. Also when a remember screens pops up from the calendar Outlook is freezing some time. It's very annoying for everybody.
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gbrown100

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I have a user working remotely over a DSL connection that has a 4.3GB mailbox. He has a 3 year old machine running Vista, he does not experience delays. I would suggest that if this was a problem for everyone then no-one would use Kerio so there must be a logical explanation for it.

I would suggest those with the problem call up Kerio support and see what they think the problem could be.

Graham
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Simple

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Gbrown100, does this user works with the KOC without caching of the new KOC with caching?
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gbrown100

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They are using the offline caching version. In fact the only time I install the KOC online is when I am dealing with someone using Outlook 2002, no matter whether they are local to the server or remote. Not sure whether other people use Online for LAN and Offline for laptops but it seemed pointless using two different connectors to me.
Simple

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Users are working on our Citrix farm and from there they start Outlook XP with the KOC without caching. The connection between the Citrix farm and the Kerio server is 1Gbps (local LAN).

I don't know if the KOC with cache is working better, but I don't want KOC to sync everytime.
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