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cubetech / sysadmin.courier-to-dovecot

Migratin courier to dovecot in an ISPconfig environment
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Question #1

Closed hirbod closed 11 years ago

hirbod commented 11 years ago

Hi,

does this work with ISPConfig 3.0.5.3? And did someone test this migration-script? Does it work?! Any answers will be appreciated!

Thanks!

acki commented 11 years ago

Hi

It is not built on top of ISPConfig, it's low level and migrating directly from courier to dovecot. So it SHOULD work, but reliable on your environment there could be some problems. We used it also for an ISPConfig environment and it worked properly.

BUT - you should really test the migration on a different server if your environment is productive!!!

Cheers

hirbod commented 11 years ago

Hi acki,

thanks for your reply. Yes, my environment ist productive and i've got a lot of customers on the machine. What about syncing the flags? Does your script get into this? Or will the migration trigger imap to redownload all the mails again?

Cheers!

acki commented 11 years ago

Ok, so it's very very important you test the migration before you run it productive!!!

As i remember, the mail client would redownload all mails. The point with flags i don't know, at this time i hadn't any flags.

Cheers

Hi acki,

thanks for your reply. Yes, my environment ist productive and i've got a lot of customers on the machine. What about syncing the flags? Does your script get into this? Or will the migration trigger imap to redownload all the mails again?

Cheers!

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hirbod commented 11 years ago

Hi, thanks again.

http://wiki.dovecot.org/Migration/Courier

The official script got some workarounds to prevent IMAP from redownloading. But I really guess it's to hot to try this on a live-environment. I will try to find a way to test before I get into this problem, cause the benefits of dovecot arent that important I guess to risk a imap failure.

But maybe you could get into this redownload thing with the original workflow and merge this into your script, that would be awesome I guess!

Thanks!