This mail never gets delivered. Any ideas why?

[Νίκος Γκρ33κ]

else:
		sp = subprocess.Popen(['mail', '-f', FROM, '-s', 'Mail from Guest', 'support at superhost.gr'], sp.stdin=subprocess.PIPE)
		sp.communicate( input.encode(MESSAGE, 'utf-8') )
		status = sp.wait()


this gives me an internal server error Cameron, but i guess iam writing it wrong.

Thsi though doesnt provide an error:

	else:
		sp = subprocess.Popen(['mail', '-f', FROM, '-s', 'Mail from Guest', 'support at superhost.gr'], stdin=subprocess.PIPE)
		sp.communicate( bytes( MESSAGE, 'utf-8' ) )
		status = sp.wait()

but neither gets the mail across.