Julian, What I typically do is: 1. set the MX record TTLs very low a few days before the move for each domain that you are going to move. 2. Perform the tasks outlined in the KB article you referenced 3. Change the MX records and reload the zone 4. Add an entry in the OLD machines 'hosts' file (typically c:\winnt\system32\drivers\etc\hosts' such as: <ip_address_of_new_domain_mx> moveddomain.com 5. Remove the OLD instance of mail for the doamin on the old machine.
What #4 is going to do is ensure that any lingering emails coming into the old machine for the moved domain will be immediately shipped to the new MX for the moved domain. Then after all of the domains have been moved over and you've waited a few days you can go in and remove the entries from the hosts file on the old mail machine. NOTE: You do NOT have to have MX records pointing to both the old and new machine during this transition - and my feeling would be that you wouldn't want to period. Just set up the new mail, change the MX to point to the new machine IP, add an entry in the old machine's hostfile to redirect mail for the old domain to the new IP, and remove the old instance of mail on the old machine. It actually can be done pretty quick and you won't lose mail nor will you have mail building up in old POP3 mailboxes on the old machine during the dns propogation time. As far as your clients go, you are likely going to have a few support calls regarding their inability to log in via pop3 or smtp authenticate -- mostly because they are likely running Windows and need to do an 'ipconfig /flushdns' locally or need to reboot their system (or need to have their network admin flush their local dns cache). It probably would be best ot notify them ahead of time and let them know that if they encounter problems on such-and-such date (your move date) then 'do these things first' before calling :) Mike Tindor ---------- Original Message ---------------------------------- From: Julian Voelcker <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Date: Fri, 25 Jun 2004 10:30:20 GMT I want to be able to move the main domain on one Imail server to become a virtual domain on another. I am planning on following the instructions on http://support.ipswitch.com/kb/IM-20000510-DM02.htm, but am wondering if there is anything else to watch out for. I will be moving about a dozen domains from one server to another and will also be changing the DNS servers. I would also appreciate any pointers on the best approach for swapping over the DNS info in order to minimise mail disruption. Cheers, Julian Voelcker The Virtual World (UK) Limited Cirencester, United Kingdom To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ ________________________________________________________________ Sent via the WebMail system at 1st.net To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
