I have done the sync manually with "doveadm sync" command. But, I have not configured the replication yet.
If you don't tell dovecot where to replicate, nothing gets replicated.
I am looking at the below webpage for the replication.
I am using the dovecot version "2.2.36". I am confused with what needs to be done after reading that page.
1. They are talking about v2.3.1 and v2.2+. Which one do I need to follow? Could you please give me more details on this? Providing some sample settings will be more helpful for me, please.
I don't understand your confusion. You are using 2.2.36, which is v2.2+ (meaning a version greater than 2.2).
The documentation states you need at least 2.3.1 if you want to use the noreplicate feature.
So you can't use that with 2.2.36, but as your goal is to replicate everything you don't need "noreplicate".
Besides that I can't see any difference in configuring replication for 2.2/2.3.
If you want to replicate emails with ssh you just have to follow the first section, the sample settings are
right on that page. It's basically copying everything from "mail_plugins = $mail_plugins notify replication"
to "replication_max_conns = 10" into a config file like /etc/dovecot/conf.d/12-replication.conf
You only have to change the following line to match your server/ssh setup:
Then generate and configure ssh keys for user vmail (passwordless authentication) on both servers.
2. Also, do I need to set the replication on both of my servers the same and as it is?