heh
Actually, I think that either “e-mail” or “email” is considered proper spelling. Hyphenated words typically are un-hyphenated after long use and familiarity. For instance, the word “tomorrow” was once spelled “to-morrow”.
Technically, yes. However, the term “e-mail” is always correct, since it modifies the word ‘mail’ by designating its type, in this case ‘electronic’.
When I see people use “email”, and I see them in person, I’ll tell them I got their ‘email’ in one phrase. They then ask why I’m mispronouncing the word, and I teach them about modifiers.
As another example, in the 1940s, troops listened to music on ‘V-discs’. Today, I guess they’d be ‘vdiscs’.
I find that sad.