I'm experiencing the same issue. I hadn't correlated the "Email address not available on this system" with the SQL errors previously. Thank you for that.

This thread is pretty old, but did you happen to find the source of your problem?

Does anyone know where I might find documentation for the CreateAppointmentFromString function, as found in the .NET libraries, at MailEnable.Appointments.AppointmentItem ? The .NET reference document does not contain any mention of this namespace nor this function. The documentation version on the ...