@ IamArarat
1. First, you charge down the German dictionary. <<< you must click here
2. The package is unpacked and copied the files in the Dictionaries directory of the Zimbra installation.
For Windows installations you can find it here: C: \ Program Files \ Zimbra \ Zimbra Desktop \ win32 \ prism \ xulrunner \ dictionaries
3.Im next step opens one's user.
js (C: \ Documents and Settings \ USERNAME \ Local Settings \ Application Data \ Zimbra \ Zimbra Desktop \ profile) and investigated the following line: user_pref ("spellchecker.dictionary", "en-US");
In this part of the change "en-US" easy "de".
Then you have to restart the computer once.
Effective immediately checked the Zimbra Desktop texts in German language.
Regards
zwoggl