email - correct spelling

email

noun and verb

Note: Spelled email, e-mail, and E-mail. By using email and omitting the hyphen, you will avoid having the word wrap at the end of a line. If you use e‑mail, make sure you use a nonbreaking hyphen.

Here’s a usage note from Dictionary.com.

The transition from World Wide Web site to Web site to website as a single uncapitalized word mirrors the development of other technological expressions which have tended to take unhyphenated forms as they become more familiar. Thus email is gaining ground over the forms E-mail and e-mail, especially in texts that are more technologically oriented. Similarly, there is an increasing preference for closed forms like homepage, online, and printout.

Dictionary.reference.com/browse/website.

Example: Send me an email with your suggestions. noun

Example: Please email him with your suggestions. verb