Hi Christian,

this is just what I wanted to do from the beginning, but reading here I thought it was not possible:

"Replication works only between server pairs. If you have a large cluster, you need multiple independently functioning Dovecot backend pairs. This means that director isn't currently supported with replication. The replication in general is a bit resource intensive, so it's not recommended to be used in multi-million user installations. "

From: https://wiki.dovecot.org/Replication

I'll try then!

Thanks

Cheers

Hello

Thunderbird/Outlook does that, because you change the servername in your
configuration.

In order to avoid that, use a reverse proxy and switch on it between
your IMAP servers.
You can use a dovecot director for that.
In your clients you only configure the proxy.
That also avoids changing configuration on all of your clients.


Kind regards,
Christian Mack

Am 01.12.21 um 09:31 schrieb Claudio Corvino:

Hi,

I have two IMAP/LMTP Dovecot server in replica (version 2.3.4.1) both
connected through an IPsec tunnel, I use LDAP/AD for /userdb, /all seems
to be working.

I have a question: if I switch my Thunderbird/Outlook client to use the
other server I have to download again all the emails, about 10 GB.

Is there any way to avoid this? Do I have to download again all the
folders every time I switch from node A to node B on my client?

Thanks!

Regards