CAN-SPAM Compliance (USA)

The CAN-SPAM (short for Controlling the Assault of Non-Solicited Pornography And Marketing) Act was signed into law in 2003, and the Federal Trade Commission is required to enforce it. So here it is, straight from the FTC’s website, plus some comments (in blue) about how CartStack fits into this:

Don’t use false or misleading header information. Your “From,” “To,” “Reply-To,” and routing information – including the originating domain name and email address – must be accurate and identify the person or business who initiated the message.
We've got you covered here. We make sure your "From" name and "Reply To" email are valid.
Don’t use deceptive subject lines. The subject line must accurately reflect the content of the message. 
This one is up to you. Basically, don't be sneaky or gimmicky. Check out our  guide to writing effective subject lines here.
Identify the message as an ad. The law gives you a lot of leeway in how to do this, but you must disclose clearly and conspicuously that your message is an advertisement.
Tell recipients where you’re located. Your message must include your valid physical postal address. This can be your current street address, a post office box you’ve registered with the U.S. Postal Service, or a private mailbox you’ve registered with a commercial mail receiving agency established under Postal Service regulations.
Make sure to include the physical address of your business in the footer of your email templates.
Tell recipients how to opt out of receiving future email from you. Your message must include a clear and conspicuous explanation of how the recipient can opt out of getting email from you in the future. Craft the notice in a way that’s easy for an ordinary person to recognize, read, and understand. Creative use of type size, color, and location can improve clarity. Give a return email address or another easy Internet-based way to allow people to communicate their choice to you. You may create a menu to allow a recipient to opt out of certain types of messages, but you must include the option to stop all commercial messages from you. Make sure your spam filter doesn’t block these opt-out requests. 
CartStack will automatically add a noticeable unsubscribe link to the footer of each email message sent. Read  Modifying the Unsubscribe Link to learn more.
Honor opt-out requests promptly. Any opt-out mechanism you offer must be able to process opt-out requests for at least 30 days after you send your message. You must honor a recipient’s opt-out request within 10 business days. You can’t charge a fee, require the recipient to give you any personal identifying information beyond an email address, or make the recipient take any step other than sending a reply email or visiting a single page on an Internet website as a condition for honoring an opt-out request. Once people have told you they don’t want to receive more messages from you, you can’t sell or transfer their email addresses, even in the form of a mailing list. The only exception is that you may transfer the addresses to a company you’ve hired to help you comply with the CAN-SPAM Act.
No problem here! When a user unsubscribes from your campaign, they are immediately added to a suppression list so they will NOT be emailed again.
Monitor what others are doing on your behalf. The law makes it clear that even if you hire another company to handle your email marketing, you can’t contract away your legal responsibility to comply with the law. Both the company whose product is promoted in the message and the company that actually sends the message may be held legally responsible.
Please contact us with any other questions you have regarding deliverability and/or CAN-SPAM compliance.

Looking for SPAM related information for another country? Please  contact us so we can point you in the right direction.
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