- Put URLs in the subject line!
- Use YouTube for e-mail promos.
- Test auto-updates of content for older e-mails.
- Make your e-mails 3D (QR codes, digital catalogs).
- Make "exclusive e-mail" offers a priority.
- Format with images that are the same size as those on your site and HTML.
- Ask for feedback and respond to it.
- Use control groups to determine full impact of e-mails.
- Use an offer in order confirmation e-mail.
- Send a full early engagement stream instead of a single welcome e-mail.
There you have it! Now you can print this out and use it as a checklist for success.
Reference What Not To Do in E-Mail