Install SSL Certificate on Zimbra mail server

To install SSL certificate for Zimbra Mail Server, login to server, switch to user zimbra

su - zimbra

Now create file commercial.key, paste your Private key.

vi /opt/zimbra/ssl/zimbra/commercial/commercial.key

In commercial.crt, paste your SSL certificate.

vi /opt/zimbra/ssl/zimbra/commercial/commercial.crt

Create commercial_ca.crt with content of your ca-bundle file.

vi /opt/zimbra/ssl/zimbra/commercial/commercial_ca.crt

Verify SSL cerificate

/opt/zimbra/bin/zmcertmgr verifycrt comm /opt/zimbra/ssl/zimbra/commercial/commercial.key  /opt/zimbra/ssl/zimbra/commercial/commercial.crt

If SSL verified sucessfully, you can install it with command

/opt/zimbra/bin/zmcertmgr deploycrt comm  /opt/zimbra/ssl/zimbra/commercial/commercial.crt /opt/zimbra/ssl/zimbra/commercial/commercial_ca.crt

To make SSL active, you need to restart Zimbra mail server with command

zmcontrol restart

If you need to install self signed SSL, run

zmcertmgr deploycrt self
zmcontrol restart