netmail vs email

netmail is not a noun while email is a noun.

Word	Noun	Adjective	Verb	Adverb
netmail	No	No	Yes	No
email	Yes	No	Yes	No

As verbs, netmail and email are synonyms defined as:

Other synonyms of netmail include e-mail.

netmail (noun)	email (noun)
	(computer science) a system of world-wide electronic communication in which a computer user can compose a message at one terminal that can be regenerated at the recipient's terminal when the recipient logs in

netmail (verb)	email (verb)
communicate electronically on the computer	communicate electronically on the computer