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*** Hopeleonie ***Flag for Switzerland

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Searching a good Mailbox Imap sync Tool

Hi

I'm searching a good Mailbox Imap sync Tool for a customer with Mozilla Thunderbird. Would you recommend me something like this:

https://imapsync.lamiral.info/X/

I also need a good secure tool as I will sync customer Emails.

Thanks & have a nice day.

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Avatar of David Favor
David Favor
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For completeness...

I'm doing this now, converting a 10+ year old Dovecot IMAP setup to current Dovecot.

Looking at your question tags, my process might apply to you too.

Here's my sequence...

1) Setup new MX + IMAP server.

2) Test that all users can really receive email + messages get dropped into correct Maildir folders.

3) Now run an rsync from old Dovecot instance to new Dovecot instance, --exclude='*dovecot[-\.]*' which skips transmitting any old Dovecot control files.

4) Test #1-#3 repeatedly.

5) Set DNS TTLS for MX + IMAP IPs to 30 seconds, prepping for final migration.

6) Stop MX listener on old instance.

7) Change IPs to new MX listener + new IMAP instance.

8) Wait 30+ seconds, then do one final rsync.

9) At this point all messages... along with entire folder structures will have moved... and new messages will be arriving on new MX.

This approach works much faster than using any imapsync type tool.
Update: This migration was trivial.

Worked, first time out of the gate.

25ish years of mail migrated + working in a single afternoon.

Very nice.