Connect. Communicate. Collaborate. Securely.

Home » Kerio User Forums » Kerio Connect » Migrate from Exchange Server 2003 to KMS 6.5 on OS X Leopard
Hans Vernhout

Messages: 2
Karma: 0
Send a private message to this user
We purchased Kerio Mailserver more than 3 weeks ago but got no reply from Kerio on several requests to help us with migrating our mail, addresses, calendars etc. from Exchange Server 2003 to KMS on Leopard Server 10.5.2. Sad

The mail server runs fine on our Leopard Xserve machine, but support from Kerio seems non-existent !!

How do we get our mail, etc. from Exchange Server 2003 (that is in a different domain/network than our new Apple server) to KMS. Preferably without using command line tools, but if that's the way to go we'll give it a try. Our Exchange database is several Gigabytes, and we want to keep the mail dates, flags, etc. intact if possible.

We tried the Kerio migration tool (downloaded from an Italian site as Kerio didn't even bother to reply to our request for a download link) but that stalled after some 55 emails. Maybe a newer version works better, but than Kerio has to reply with a download link!

Because we already use the new KMS server the migrated mails, contacts, events, etc. will have to be merged with the new mails and calendar events.

Does anybody know how to do all this? Any help would be greatly appreciated!

Kind regards,

Hans Vernhout

P.S: Kerio, if you are listening: we are a paying customer looking for help...

Messages: 25
Karma: 0
Send a private message to this user
Hello Hans,

The way we did this was to use the Exchange migration tool which worked relatively well, bearing in mind we were on exchange 5.5 running on NT.

We had to do a few cleaning up tasks on the exchange database which included removing the journal data from all mailboxes and then running the exchange defrag to compress and re index. We found that this massively reduced the number of emails that failed in the migration process.

From what i can remember you have to run the migration tool on client machine with outlook installed. I would suggest running this tool on a powerfull PC. Also when preferably when no one is using their email account, again this to reduce errors.

Other than using that tool you could export all your mailboxes to PST's and import them. I can imagine on a server with a huge number of users could take a long time.

Logs below:

Migration was finished at: 04/08/06 02:08:13
Migration time: 01:28:01
9 migrated users
15135 migrated messages
206 errors

Migration was finished at: 04/08/06 08:34:39
Migration time: 00:28:37
1 migrated users
4694 migrated messages
123 errors

Migration was finished at: 04/07/06 23:10:20
Migration time: 01:20:15
11 migrated users
14679 migrated messages
120 errors
Hello Hans,

sorry for late reply as it was forwarded to our partner to help you.
Now we will handle it internally.

Basically you have 2 options
- use our migration tool
- import pst files (from local pst to Kerio profile within Outlook)
As you have a few users, importing pst files is not difficult and you can merge with existing data on clients. Both options are time consuming for large mailstores.

Jan Vobruba
Hans Vernhout

Messages: 2
Karma: 0
Send a private message to this user
Thanks Mark and Jan,

We are trying the pst-files route, as our old and new server are in different domains.
Thing are moving slooowly but steadily; accept for a few emails with empty subject lines and wrong dates everything seems to import fine.

We have only a few users to migrate, so this is not too much work. But you have to be patient for the import to finish all the emails (think workdays. not minutes). As long as the migration succeeds we're happy, but we wonder how big companies transfer their users to a new system.

We still have to figure out if it's possible to bring our contacts, notes, and calendar items into our new system as well (via pst-files or other formats).

To give Kerio some credit where it's due (after my initial complaint): two people from Kerio responded to this thread very swiftly. Brian from technical support mailed me the links to the requested tool and some more information off list.

Thanks for the help. Tips for transferring calendar items and contacts to iCal and Apple Address Book (via Kerio Mailserver syncing under OS X?) are still very much appreciated.

Kind regards,

Hans Vernhout
Previous Topic: KOC 6.5.1 IMAP error only in Inbox
Next Topic: Bypass DNS Lookups
Goto Forum:

Kerio discussion forums are intended for open communication between forum members and may contain information and material posted by members which may be useful in learning about Kerio products. The discussion forums are not intended to provide technical support for any specific product. Any information implied or expressed in the discussion forums is that of the posting member. Kerio is in no way responsible for the information posted in the forums, or its accuracy. Kerio employees may participate in the discussions, but their postings do not represent an offical position of the company on any issues raised or discussed. Kerio reserves the right to monitor and maintain the forums to promote free and accurate exchange of information.

Current Time: Fri Oct 20 10:46:57 CEST 2017

Total time taken to generate the page: 0.00467 seconds
.:: Contact :: Home ::.
Powered by: FUDforum 3.0.4.