I work with two others who have installed Zimbra Desktop on Windows 7.

They both log in successfully on Zimbra with both their personal accounts and a shared account. I myself log in successfully with my personal account, but not the mentioned shared account, I just get this error message: "account.ACCOUNT_EXISTS: email address already exists: 2fdddbc0-0033-429b-b684-16015ba4b749". What on earth is going on?

Thanks in advance!