Regulations for Commercial Email
The Federal Trade Commission has a summary of the CAN-SPAM regulations HERE.
There are four basic requirements of the Act:
* You may not have false or misleading header information - your "to," "from" and routing information must be accurate.
* You may not have a deceptive subject line - your "subject line" cannot mislead the recipient.
* You must give the recipient a way to opt out of further mailings - such as an email address to send a request for removal.
* Your email must be designated as an advertisement and it must include your physical mailing address.
A "transactional" or "relationship" message - an email regarding an agreed-upon transaction or one that updates your relationship with an existing customer - is not subject to the CAN-SPAM provisions except that it may not contain false or misleading routing information. Other types of emails are exempt from the CAN-SPAM Act.
Violating these provisions may result in fines of up to $11,000. Nevertheless, the requirements of the Act are good business practices to follow, regardless of your email's purpose.
Take my advice; get professional help.