Hi everyone!

Am very new to Zimbra, and have been tasked by my new job to do a domain migration, so please bear with me if my questions sound noob.

There is a OpenSource edition of Zimbra setup for production use, and we need to migrate it from domain1.com to domain2.com, while maintaining all the settings/accounts etc.

What is the best way for this?
How should I even begin?

Thanks!