- Using spammy phrases like "Click here!" or "Once in a lifetime
opportunity!"
- Going crazy with exclamation points!!!!!!
- USING ALL CAPS, WHICH IS LIKE SCREAMING AT THE TOP OF YOUR
LUNGS VIA EMAIL (especially in the subject line)
- Coloring fonts bright red or green
- Coding sloppy HTML, usually from converting a Word file
- Creating an HTML email that's nothing but one big image, with
little or no text (since spam filters can't read images, they
assume you're a spammer that's trying to trick them).
- Using the word "Test" in the subject line
- Sending a test to multiple recipients within the same company
(that company's email firewall assumes it's a spam attack)
- Designing HTML email in Microsoft Word and exporting the code
to HTML (That code is sloppy, and spam filters hate it.)