You change the settings in the user Preferences/Accounts section, you can configure the settings for the 'correct' address. Select a Persona and change the entries
Originally Posted by SFX Group
Zimbra will automatically set those options when you reply to the email, you need do nothing else unless I'm missing something obvious in your configuration. The feature is described in the Documentation, search for "persona".
Messages sent from this account have the following settings:
Use this persona: