Migrate vmail to new server

I am about to migrate the mailboxes on my old mail server to a new server.

Setup:
Old server: Courier
New server: Dovecot

I did the following steps to migrate one of the mail domains to the new server:

- tar-gz the domains directory in /var/vmail
- copy and extract at same position on new server
- using migration script to migrate courier->dovecot as described http://wiki2.dovecot.org/Migration/Courier
- changed MX record in DNS
- openend mysql console on ISPC master server and changed the server_id in mail_domain and mail_user

Didn't work, cannot login with mailuser credentials on new server.
Do I have to change the server_id in every database on every server? or is there a better way to do this?

 

Am I right, that this script migrates the mailboxes from courier to dovecot on the same machine?

That not exactly what I have to do.
I have to migrate from courier to dovecot on another machine.
The dovecot is running and working on that machine. I just have to migrate the existing mail domains and mailboxes from the old machine to the new one.

 

Can I use the script only for full migrations?
I planned to migrate the mail domains in multiple steps.
Furthermore there are already some new mail domains on the new server.
Is this a problem for the migration script?

 

migrated successfully

Hi,

I migrated successfully today using a perl script named
courier-dovecot-migrate.pl ...

However I'm not sure if plain login is the correct mechanism, the logs show:

method=PLAIN

and very often in the logs there appears:

Code:

Jun  4 17:24:01 ispc postfix/smtpd[13658]: connect from localhost.localdomain[127.0.0.1]
Jun  4 17:24:01 ispc postfix/smtpd[13658]: lost connection after CONNECT from localhost.localdomain[127.0.0.1]
Jun  4 17:24:01 ispc postfix/smtpd[13658]: disconnect from localhost.localdomain[127.0.0.1]
Jun  4 17:24:01 ispc dovecot: pop3-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, session=<gVPLNwT7TwB/AAAB>
Jun  4 17:24:01 ispc dovecot: imap-login: Disconnected (no auth attempts in 0 secs): user=<>, rip=127.0.0.1, lip=127.0.0.1, secured, session=<w13LNwT7lgB/AAAB>

is there everything alright? I tried to set

auth_mechanisms = sasl plain login

but then it didn't work anymore, auth impossible.

 

Usually you simply create the mailbox on the target machine the usual way.
Then you copy "preserving" time-stamp /var/vmail/Maildir.

If not achievable this way you could also imapcopy from one host to the other but you need mailbox credential on both machine for such.

Regards,