2.1) Let your recipient know who you are and how you got their details
It's so important to convey how you got someone's email address when you're contacting them. We add a note at the top of every template we design for you that clearly explains who you are and how you obtained their email address. Also, to ensure compliancy with the US CAN-SPAM laws, your street address is included in every template we design for you.
2.2) Make it easy for your subscribers to unsubscribe
Be sure you have an unsubscribe link, it's very important not to hide the link in small text at the bottom of your email. A prominent unsubscribe link conveys trust to all recipients and shows you're serious about maintaining permission.
2.3) Link to a web version
Your recipient may be using an older email client that has problems displaying your email, we always provide with a web-based version for them to view in their browser.
2.4) Ask to be added to your their contact list
You will also like to have a note asking your recipients to add your sending email address to their address book. Many ISP's allow your recipients to filter emails from unknown senders. Plus, images are displayed by default if you're in the address book for many popular email clients.