Opt-in Email:
- Email information that the recipient explicitly requests such as a newsletter or eZine.
 
This is the best way to comply with CAN-SPAM guidelines – always ask your newsletter or email recipients to OPT IN!  If they asked to receive the emails, you cannot get in trouble for sending them.
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Glossary Definition From ABC’s of Online Marketing by Alexandra Wharton, Issue 22, Revenue Magazine
				