Zimbra as Secondary mail server
We have just installed zimbra on our company network of about 50 email users. The old mail server is running of an SME linux with normal pop and imap.It is also our proxy/dns server.
My question is how can I have minimum disruptions and have mail forwarded to zimbra via our old mail server or what else would be the recommended solution. I was thinking along the lines of having Zimbra fetch the mail from the SME server into an identical account and the user can log on and retrieve/send also via the SME as a relay. Please advise.