How to enable / disable Instant Messaging(IM) for Zimbra 8.6 (Zimbra Chat)

IM – Instant Messaging for Zimbra 8.6.

1. To Check the status for enabled or disabled:

# zmprov gacf zimbraXMPPEnabled
# zmprov gc default zimbraFeatureIMEnabled
# zmprov gc default zimbraFeatureInstantNotify

If it returns FALSE IM was disabled, else TRUE means enabled.

2. To enable for Instant Messaging:

# zmprov -l -v mcf zimbraXMPPEnabled TRUE
# zmprov -v mc default zimbraFeatureIMEnabled TRUE
# zmprov -v mc default zimbraFeatureInstantNotify TRUE

3. To disable for Instant Messaging:

# zmprov -l -v mcf zimbraXMPPEnabled FALSE
# zmprov -v mc default zimbraFeatureIMEnabled FALSE
# zmprov -v mc default zimbraFeatureInstantNotify FALSE

4. Need to restart the zimbra:

# zmcontrol stop
# zmcontrol start

Ref:

https://dilliganesh.wordpress.com/2016/09/21/instant-messaging-for-zimbra-8-6/