Plus, version sometimes makes a difference on what commands we give, available options that you can take based on Open Source vs Network Edition, or better yet we may have already implemented a feature your requesting in a newer release. (It also saves time having to ask in the future.)
Originally Posted by jholder
How to check your version?
Note: Not all these methods are possible in the desktop client, but that also has multiple 'about' links.
Several quick methods for server editions:
A) Preferred, via the command line:
B) In the main search bar of the advanced (AJAX) web-client enter:
su - zimbra
C) Visit server.domain.com/downloads/index.html in your browser.
telnet server.domain.com 143
A001 ID NIL
(More or less info available depending on true/false setting of zimbra[Protocol]ExposeVersionOnBanner.)
openssl s_client -connect server.domain.com:993
F) Send yourself an email from the web-client, 'show original' and check the X-Mailer: header.
G) Admin console help, about ZCS version.
Then simply go to http://www.zimbra.com/forums/profile.php?do=editprofile about halfway down the page 'additional information' > Zimbra Version/OS blank.
(Be sure to enter the whole string in the provided box, as it contains important build data. Or add it to your signature.)