Sorry for the stupid question and i have tried to read about this but i cant seem to find an answer,

I currently have 3 pop email accounts are already setup with a hosting company, and at the office there are 4 other computers that monitor these 3 email accounts. Now I need a way to sync sent items and just have a way to see what other people have responded to so multiple emails don't get sent out to the same person.

If i setup a zimbra server on linux will it be able to take my 3 email accounts that already exist and allow me to better manage them on 4 other computers so i can see whats been read and responded to?

Sorry for the noob question, im just trying to figure out if zimbra will work for me thanks for the help!