Connect. Communicate. Collaborate. Securely.

Home » Kerio User Forums » Kerio Connect » Mail server migration strategy? (From old POP3 system to IMAP on KMS)

Messages: 17
Karma: 0
Send a private message to this user
Hello all

We are in the process of planning a KMS deployment and I am having difficulty working out how to make the migration from our old POP3 mail server to an IMAP solution on KMS.

Is there a best practice methodology for doing this, or can any of you let me know how you achieved it without loss of service, or email? I'd like to do it bit by bit if possible (160 users), but will consider doing it all in one go if necessary. Users are a mix of Mac ( and Entourage) and PC (Outlook pst's).

Many TIA


[Updated on: Mon, 12 January 2009 18:20]


Messages: 32
Karma: 3
Send a private message to this user
We migrated from approx 120 AS/400 POP3 mailboxes to KMS IMAP. Because we're a sales organisation, mail is extremely important, so I had to do it box per box, user per user. The whole migration took about 2 weeks in run-time, spread over about half a year.

I used two "tricks" in the migration process:

  • Kerio was configured to forward mail to the AS/400 if the user wasn't found (yet) in the Kerio userlist.
  • POP3 on Kerio popped the user's mailbox on AS/400 as long as not everybody was migrated off the AS/400 mailserver.

The migration itself (user by user) was rather easy. Create the user on Kerio, configure the mail client and import the (local) mailfile. All our clients are Outlook 2003 so that was rather easy.
Previous Topic: Microsoft plan to drop WebDAV in Entourage update? READ THIS!
Next Topic: Need help to configuring Kerio Mail Server
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: Mon Nov 20 10:50:37 CET 2017

Total time taken to generate the page: 0.00386 seconds
.:: Contact :: Home ::.
Powered by: FUDforum 3.0.4.