Gute Nacht! Ich wuensche dir eine gute Nacht! You might have confused that with 'Guten Morgen'. Morgen is grammatically male, Nacht female ;)

Gute Nacht!

Hello how are you doing today my name is john from china I have something important to tell you Please get back to me in my emailbox I have some business to do with you please contact me in my email Your message will be highly appreciated [[email protected]]

thanks

Gute Nacht