I need to access a zimbra server from a motorola defy MB525. This seems to be different to other android platforms mentioned in the zimbra forums as the exchange configuration is done under a "corporate sync" setup option instead of the plain email setup.

After entering all the server details and attempting to sync the phone simply comes up with a message saying the connection failed but no details. The server does not have a domain and I have tried entering the domain/username with a forward slash, backslash and no slash but always the same error. Does anyone know if there are issues specific to this phone model, or any other trick?