Just use Webclient?
I'm rather new to the Zimbra platform, and I must say that Zimbra's webclient is the best I've found on the internet. However, I already have an email sever which I don't plan on retiring. So, is it possible to only use Zimbra's webclient, and use it with my own servers? If so, how do I go about doing this(do I need to copy files to my webservers and edit them?)
Thanks for your assistance!
Try Zimbra Desktop. Its gives you the Zimbra web client and can work with any mail server (IMAP/POP) or Y!, GMail, etc.
In addition, it cannot be used as a web client alone -- it is a full mail server suite.
Migrations are not too difficult, and Zimbra has a very extensive list of features, so it may even be worth migrating to. It was for us :)