Renaming Mail Server Zimbra

1. set your /etc/hosts
the /etc/hosts for lookup your new hostname mail system zimbra

2. set in your DNS
for new hostname mail system, the DNS must can be resolve a new fqdn / hostname zimbra with mx record

3. Step for changing a new hostname server zimbra

su - zimbra
/opt/zimbra/libexec/zmsetservername -n <servername>

for example:
[zimbra@hafiz ~]$ /opt/zimbra/libexec/zmsetservername -n newhostname.hafiz.com

set webmail zimbra http to https

set webmail zimbra http to https:
as a user zimbra follow the steps

changing the webmail over https
$ zmtlsctl https

restart the mail server zimbra for perform a new configuration
$ zmcontrol restart 

now if you want to go  the webmail point your browser to
https://your.webmail.com