This is a collection of various Zimbra tweaks.
Set Zimbra to Automatically Redirect to HTTPS
When a user wants to log in with a web browser, I want to force HTTPS to be used. All connections to http://mail.domain.com are redirected to https://mail.domain.com.
$ zmtlsctl redirect $ zmcontrol stop $ zmcontrol start
Reference: CLI zmtlsctl to Set Web Server Mode
Set the Default Time Zone
Zimbra is very picky about the time zone string. The complete list is at the very bottom of Time Zones in ZCS.
zmprov mc default zimbraPrefTimeZoneId '(GMT-07.00) Mountain Time (US & Canada)'
Reference: Time Zones in ZCS