SUMMARY

How to migrate a single post office from one MailEnable server to another MailEnable server.

DETAIL

The process for migrating a single post office to a new server is different to a full migration, and the order of the steps are important. The steps require the use of the Postoffice Extract utility which can be found at:

Tools & Utilities Download - Migration and Conversion

The download file includes documentation on how to use it. The steps for migrating are:

When starting a migration you need to both prevent users for the domains from logging in, and also new messages from arriving. This can be done by disabling the postoffice and stopping the MTA service. You can restart the IMAP service and recycle the MailEnable application pool under IIS management utility to kick off existing users. This will also affect all users of the server.

Copy the post office message store (i.e. all the messages for all the mailboxes) from the current server to the target server. The location of this is: Mail Enable\Postoffices\[PostofficeName].

Copy post office configuration directory from the current server to the equivalent location on the target server. The location of this is: Mail Enable\Config\Postoffices\[PostofficeName]

Copy the DKIM settings for the domains that are under the postoffice. These are located at Mail Enable\Config and are named "DKIM-[domain].SYS".

Copy the DKIM keys for the domains that are under the postoffice. These are located at Mail Enable\Config\DKIM and are named "[domain].key".

Copy the audit log files from Mail Enable\Config\Audit\[postoffice] to the equivalent directory on the target server.

Use the Postoffice Extract utility to export the configuration from the source server and copy this to the target server. The documentation for the utility explains how this is done. Make sure you redirect the domains to the new server as described in the utility documentation.

On the source server, delete the postoffice address maps and auth entries using the postoffice extract utility.

On the target server enable the postoffice.

Update DNS entries for the domains to point to the target server.

Start the MTA service on the source server.

MORE INFORMATION

MailEnable System Manual

How to force MailEnable to deliver to an external address over local delivery: Article ME020276