How to address the german “Prof. Dr.-Ing. habil. X” in writing? I’m not familiar with German academic system.

I got a name card from a German professor and found that his title is as


  Prof. Dr.-Ing. habil. X 


When I am writing a mail to him, can I starting the mail as follows?


  Dear Professor Dr.-Ing. habil. X, […]
No, just "Dear Professor X" is correct and completely in line with the German conventions. The "Dr.-Ing. habil." part refers to certain qualifications (PhD in Engineering and a Habilitation -- a German qualification to teach at a University), but is only ever used on name cards and CVs etc.