1. Comply with CAN-SPAM
See if you comply with the CAN-SPAM guidelines. The law which was passed by the U.S congress in 2003 essentially says that you need to include an unsubscribe link and your physical address. You can read more at http://business.ftc.gov/documents/bus61-can-spam-act-compliance-guide-business
2. Try avoiding words which may be termed as “spam”
Words like “free” or “Earn” etc are generally termed as spam. You should avoid using such email subjects from your email else you will soon find your emails getting banned soon.
3. Send both HTML and text messages
Remember that there are some customers who still use their old systems to receive messages. Not everyone has switched to receiving HTML contents so its better to send a text version of the emails.
>Hyperlinks and special HTML characters may not be supported
>restrict your line-width to 76 characteres since the line breaks after 76 characters
>Always include a physical address and an unsubscribe link.
4. Test thoroughly before sending
An email with missing words and wrong punctuation may cause lot of harm as it does not leave a good impression on the mind of your subscribers. Check the email content thoroughly before sending it out.
5. Use a good email marketing program
Please remember the marketing effort is not a one-time effort so a good email marketing program should be used to send emails to that you can keep a track of your subscribers and also the emails you have sent.
6. Check the bounced emails
Check the bounced emails to see if some server has banned your emails. If some server has actually banned your email address then you may contact that company and ask them to remove the ban by producing some valid arguments.
7. Keep it simple
Keep the mail simple. Don’t send any flashy stuff as they are generally the one’s that people discard. Try to keep the newsletter as simple as you can.
8. Avoid using Multiple Links
Most of the times this goes against the call to action link so avoid using it
9. Put a prominent call to action button
See to it that you provide a prominent call to action link like try now, get started etc. The recipient should not be made to search for the call to action link
10. Avoid using complicated designing
Try not using CSS and large images. CSS may not work and large images are a big put-off