Use to refer generically to an electronic mail program, to refer collectively to email messages, or to refer to individual email messages. If necessary to distinguish these meanings, use email message or message to refer to an individual piece of email. Make sure it's clear that you're not referring to instant messaging. After you have established the context of electronic mail, it's OK to use mail instead of email.
It's OK to use email as a verb.
Email Formatting Guidelines
When creating a client-facing email or email template, use the following formatting guidelines:
Header
- Tahoma
- Bold
- 28pt
- Color: #005eb8
Copy
- Tahoma
- 16pt
- Color: #444444
Buttons
- Tahoma
- Bold
- 16pt
- All Caps
- Color: #0085CA