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Thread: Help with Soft Migration from Postfix to Zimbra 6.x

  1. #1
    strikermdd is offline Active Member
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    Exclamation Help with Soft Migration from Postfix to Zimbra 6.x

    Hello, iīm trying to migrate from my production ambient with uses Postfix as SMTP and Cyrus Imap and i need to migrate to my newer server using Zimbra.

    I need to migrate in a soft way because we have more than 5.000 accounts and more than 200GB of data, this will need more than 2 days to move using imapsync and i donīt want stop email service in this period.

    Like this :
    Server A : Postfix and Imap ( And a LDAP )
    Server B : Zimbra

    I want to put the two servers running in same time, the Server A will be the 'Master' until the Server B be promoted to new master and will turn in Server A.

    How i can configure Postfix to send the same messages recieved for Server A a copy to Server B ? ( using the same domain, not a secondary like some example i saw here )

    How i can migrate the emails from server A to B in imapsync using a Master account of Postfix ? ( because i donīt want to reset the passwd from the old accounts )

    Thanks for the help, i really want to make this migration less painfull possible and i thinks the guys here can help me with this.

  2. #2
    lytledd is offline Elite Member
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    Quote Originally Posted by strikermdd View Post
    I want to put the two servers running in same time, the Server A will be the 'Master' until the Server B be promoted to new master and will turn in Server A.
    You can get postfix to send a copy of all email by adding this to your main.cf:

    milter_default_action = tempfail
    smtpd_milters = inet:ip_address_of_second_serverort_number

    Our looks like:

    milter_default_action = tempfail
    smtpd_milters = inet:10.0.0.11:8092

    Doug
    Ben Franklin quote:

    "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety."

  3. #3
    phoenix is offline Zimbra Consultant & Moderator
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    Quote Originally Posted by strikermdd View Post
    Hello, iīm trying to migrate from my production ambient with uses Postfix as SMTP and Cyrus Imap and i need to migrate to my newer server using Zimbra.

    I need to migrate in a soft way because we have more than 5.000 accounts and more than 200GB of data, this will need more than 2 days to move using imapsync and i donīt want stop email service in this period.
    In addition to the changes mentioned above you'll need a Split Domain set-up.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  4. #4
    strikermdd is offline Active Member
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    Sending emails works fine, but i cant get the copy of emails from Server A to B work. When i put the lines :

    milter_default_action = tempfail
    smtpd_milters = inet:MYIP:25
    The server stop working, and do not delivery any messages.

    And i make the instructions of the Splited domain, but don't work too.

    And anyone know how i can use a 'Master' Account type in Postfix ( like Dovecot ) to not need know the passwd for the accounts when i use imapsync ?

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