e·mail or e-mail 
(ēmāl′)
(ēmāl′)n.
1. A system for sending and receiving messages electronically over a computer network.
2. A message or messages sent or received by such a system.
tr.v. e·mailed, e·mail·ing, e·mails or e-mailed or e-mail·ing or e-mails
1. To send (someone) an email: I'll email you when I know my schedule.
2. To send (a message) by email.
[E(LECTRONIC) MAIL.]