- Design the top three or four inches of your email with text and HTML that will tell readers what offer or content they will find below.
- Code email by hand. Unnecessary code bloat can increase your file size and could potential mangle your email.
- Avoid using nested tables. Some email clients have a hard time rendering them.
- Avoid 1X1 pixel spacer gifs. These are often found in spam and could get your email blocked.
- Background images for individual table cells are generally accepted, but may not appear in email clients such as Lotus Notes.
- Host your images instead of embedding them. Some ISP filter emails with embedded images.
- Use inline CSS. Some email clients strip out all the header information prior to rendering the email.
- Keep HTML email 500-650 pixels wide.
- Use image alt tags. The only email client that renders the alt tag is Gmail. (Not so sure if this is that effective.)
- Avoid forms. Many email clients will not render forms correctly or pass data from an email form to your Web site.
- Host rich-media (audio, video, Flash) on your Web site. Put a link in your email to these functions on your site.
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