dovecot - Apr 2021 - Replication between three servers

Hello,

I have dovecot replication working fine between 2 servers with LDA
configured to sync mail coming from Postfix.

These 2 servers are used in master/slave mode - only the one server is used
by IMAP clients and the second server is just a backup in case of failure.

Second server is also MX backup and it happens that incoming mails come from
it via Postfix and get synchronized with the first server.

 

I would like to include third server as backup. How could be done while
mail_replica accepts only one host?

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://dovecot.org/pipermail/dovecot/attachments/20210420/8baf2fe5/attachment.html>

> On 20/04/2021 13:26 Miro Igov <miro.igov at gmail.com> wrote:
> 
> 
> Hello,
> I have dovecot replication working fine between 2 servers with LDA
configured to sync mail coming from Postfix.
> These 2 servers are used in master/slave mode ? only the one server is used
by IMAP clients and the second server is just a backup in case of failure.
> Second server is also MX backup and it happens that incoming mails come
from it via Postfix and get synchronized with the first server.
> 
> I would like to include third server as backup. How could be done while
mail_replica accepts only one host?
Replication is supported only between two hosts.

Aki