Check all images are present and displayed correctly
Check all links are present, working and go to the correct site
Check all punctuation and special characters appear correctly
Check formatting and layout is correct
Ensure all dates are correct and appear as required
Ensure all mail merge fields work and your subscriber list required data
Ensure the unsubscribe link is present and working
Ensure the "View in a browser" link is working
Confirm Sender name and Sender address is correct
Spell check your email marketing message
Perform subject line and creative split tests