Question: How to add SRV record in Hosting Controller for new and existing mail domains ?
Login in HC panel as host go to " Cluster Configuration :: Manage Servers :: My Servers :: Edit Server :: Mail Server... Tick the check box SRV Record
Host Name Offering SRV Service : “live domain name for which you have configured SSL.”
Now when you will add new mail domain HC will automatically add SRV record in the dns zone file.
For existing mail domain if SRV record not existed in the dns
Login in the HC Panel as reseller/webadmin go to Hosting Services :: Manage DNS :: DNS Zones :: Edit Zone
Add SRV record will following entries
Record Name : _autodiscover._tcp
Record Data: 0 0 443 YourSSLdomain.com
Note: YourSSLdomain.com is the domain on which you would have configured SSL
Text editor to add SRV record in existing zone
_autodiscover._tcp IN SRV 0 0 443 YourSSLdomain.com.
If you are not managing dns role within HC then follow the article to add manually SRV record