Email as noun and verb
I guess you should avoid 伊妹儿 (that almost looks like a girls' name or person name). 电子邮件 is the preferred and widely used term.

If you need a verb to express 'to send an e-mail', use 发 with 电子邮件:

E.g. 请给我发个电子邮件。 Please send me an e-mail.