How to Migrate from Postfix ,Dovecot & Openwebmail

[farrukhndm]

Dear Gurus,

I am running the Postfix,Dovecot with Openwebmail Client.now i want to install Zimbra on Centos 5 and Migrate users from my old Fedora 8 with Above MTA,

i have some queries.
1)firstly during first month i want to Run My Openwebmail & Zimbra go together running,when i get zimbra Mature then Disable access to openwebmail to my clients.
2)IN My Situation will it be possible to run Both openwebmail and Zimbra for Access the same Mail Boxes,Openwebmail on Fedora OS while Zimbra on Centos,

Please guide me wheter i fully transfer my users to Zimbra ???

3)My users for Postfix MTA located in /home/username/mail

I want to Copy home directories from my Old Fedora to Which location of Centos where i have installed Zimbra.... i mean to say from which location Zimbra store the emails.

4)how to tranzfer /etc/passwd & /etc/shadow file from Fedora to Zimbra.Whether zimbra also /etc/password & /etc/shadow???

4)Is zimbra open source support Web chat.

[uxbod]

Welcome to the forums

1) See 2
2) If OpenWebMail can connect to POP3/IMAP then they can connect to the mailboxes hosted by ZCS
3) http://wiki.zimbra.com/index.php?title=User_Migration
4) ZCS users are not stored in /etc/passwd but in LDAP
5) ZCS does have IM capabilities using Jive

[farrukhndm]

Thanks for your reply.
How to Start by keep my old openwebmail/postfix/dovecot Running??

As my mail server is running as a domain name mail.mydomain.com

Now my first inquiry is Running my domain on openwebmail As previously running and as testing purpose transfer these mail boxes to zimbra(installed on other Centos) system

and when i have fully tested zimbra then go for it.

Now please Guide me...............for
1)as i told you my old domian is registerd with mail.mydomain.com .will i have to Creat mail1.mydomain.com and configured it on zimbra during installation
2)when my this mail1.mydomain.com will get mature then how i will rename in zimbra???
please tell me command how to change domain in zimbra???
http://wiki.zimbra.com/index.php?title=User_Migration

in my case openwebmail/postfix/dovecot what suites me???

As i am feeling uncomfort for above one.

Please give me manual steps.

as i want tell you
i will create new directory /temp in my Centos and copy my old mail server's /home/username/mail and /etc/password & /etc/shadow

My /temp directory structure will be now

/temp/home/All_Users/mail
/temp/passwd
/etc/shadow


Please provide me Shell script here while will tranfser my
mailboxes and username and powassord

and then i will get my mail boxes and receing mails on mail1.mydomain.com and after few days i will change my domain in zimbra back to mail.mydomain.com

please guide me steps..

thanks.

[uxbod]

Before attempting all this you should familiarize yourself with the Wiki :: zmprov command as most of the work will need to be performed from the command line. First of all you will need to create the mailboxes on your Zimbra server using

su - zimbra
zmprov ca {name@domain.com} "" displayName "Test Account"

That would create a user with the email address name@domain.com and a blank password. You could then use

zmprov ma user@domain.com userPassword '{crypt}$1$dblahblahstuff....'

To use the encrypted password from /etc/shadow and update their account with the same one.

[farrukhndm]

Thanks, this will creat the users and i will recover their old password from /etc/shadow by using zmprov


But where i have to copy the /etc/home/allusers_account/mails in zimbra ????

[uxbod]

You cannot do it that way ... You would need to use IMAPSYNC to transfer the emails. Its all in the Wiki document I posted in the above threads (see 3).