Imapsync Massive Migration

  • Parent Directory - Back to Imapsync main page.: FAQ.APPENDerrors.txt: 2021-05-29 09:58: 6.2K: Authenticate via an admin account.: FAQ.AdminAuthentication.txt: 2021.
  • MDaemon Email Migration into Exchange Office 365 Use imapsync. We have found imapsync to be an excellent product for email migrations. It is inexpensive, efficient, and effective. Please see our blog postings MDaemon Mail to Exchange via imapsync and imapsync vs PST: Tonnage and Speed as well as any other recent email migration postings on our.
  • With the information of the official ImapSync website, its GitHub site and the Zimbra Wiki, I did a few tests with some fake accounts until I managed to migrate/sync all folders and emails between Kerio Connect accounts and Zimbra Collaboration accounts. The final command I used was the following.
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ImapSync is one of those great tools that comes really handy when you have to migrate emails from a non-compatible server to a cPanel based server. On this post we will show you how to migrate emails using ImapSync.

Imapsync Massive Migration

Imapsync IMAP synchronization, copy or migration tool 1.977 mail =14 1.977 Version of this port present on the latest quarterly branch. Maintainer: pi@FreeBSD.org.

ImapSync Requirements

MassiveImapsync

ImapSync requires you to have access to both mailboxes, on the destiny and on the origin server. That means you will have to:

Get password for the current email boxes on the server.
Create the exact same mailboxes with and assign same passwords on the new server.

Installing ImapSync

CentOS 7 Installation

First install access to the Epel repository using yum package manager:

Then install imapsync and all its dependencies:

Centos 6 Installation

Install the CentOS 6 Epel repository

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Then install imapsync and its dependencies:

The installation should look like this:

Verify ImapSync works ok by running this command:

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Now, let’s run an additional sync test between two real imap test maiboxes located at test.lamiral.info.

If everything is fine, then you are ready to test imapsync live on your server.

Migrate Emails using ImapSync Step by Step

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Once you have the same mailboxes and access created on the new server, you must execute this command:

On this example, you must replace this variables:

Replace those variables with your real ones and you’ll be able to migrate emails using ImapSync without any problems.

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ImapSync Logs

All imapsync logs are stored at /root/LOG_imapsync/ and you can get lot of information about when the email migration process started, when finished, how much time it took, the size of the email box, and total number of emails migrated.

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Using more you can explore the imapsync logs to find out how your migration is going:

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On big email boxes when you run the command it may seem it is frozen or stuck, but it’s just calculating the files and directories to migrate, after a few minutes it should show you the information on the screen.

If it takes too long, you can check out what is imapsync doing by running:

ImapSync Usage

The command offers lot of options to explore alternative ways to migrate emails using ImapSync, you can fetch all the available options by running

Expected output:

Conclusion

Now you know how to migrate emails using ImapSync, it is easy if you do it carefully and you have all the email passwords from each mail box. But it takes more time than generating and restoring a classic full backup from cPanel. However it is the safest way to migrate emails from other control panel servers that are not 100% compatible with cPanel.