Get Zimbra Version

If you need to know which version of Zimbra is running on your server, use steps described below

Connect to your Zimbra server using ssh

$ su - zimbra

and run this command

$ zimbra@zimbra:~$ zmcontrol -v

Release 8.7.11.GA.1854.UBUNTU16.64 UBUNTU16_64 FOSS edition.

Hope it helps !