
10 Rules to Write the Subject Line Right
Rule 1: Read the newspaper.
If you want to write a better subject line, pick up the local paper. The headline usually highlights a story’s most important fact in a limited space. A subject line, in turn, should clearly state what reader can expect from our email, what’s in it for them or what you want them to do as a result of the email.
Rule 2: There is no sure-fire formula.
What works in one campaign might bomb with the next. How do We find out what works best? See Rule 3.
Rule 3: Test, test, test.
Test continually to determine trends and styles that appear to work. Pretest if you can.
Rule 4: Support the “from” line.
The “from” line tells the recipient who sent the email, and the subject line sells the recipient on opening. Recent research shows readers often look at the “From” line first when deciding whether to open an email and then the subject line.
Rule 5: List key info first.
Some email clients allow more characters in a subject line than others, but most give you at least 50, including spaces. So, load your key information in that first 50. Also, make sure the cut-off doesn’t occur in a crucial word, such as a price or date.
Rule 6: Personalize.
Personalize subject lines based on users’ product or content preferences, interests, past purchases, Web visits or links clicked.
Rule 7: Watch those spam filters.
There’s a fine line between “catchy” and “spammy.” Run your copy through a content checker to identify any spamlike words, phrases or construction. The content checker will tell you which phrases to avoid. Two tricks that could trip a spam filter: subject lines in all capital letters, and using more exclamation points than necessary. (Both look unprofessional, too.) In fact, we recommend against using exclamation points at all if you can avoid it.
Rule 8. Write and test early and often.
Writing the subject line is often the last and most hurried step in email campaign development. It should be the other way around. As you plan the email campaign, start thinking about what will go into the subject line. That will help you sharpen your campaign’s focus and may even change or tweak the offer or article focus.
Rule 9. Continue the conversation.
Sending email more frequently than monthly or quarterly helps you create a conversation with your readers. Your tracking reports should show you what their crucial or hot-button issues are, what kinds of topics gets them opening and clicking more vigorously.
Rule 10. Can you pass the must-open/must-read test?
Run a simple test on yourself and others on your team – does the subject line pass these two tests?
#The must-read test. If a subscriber doesn’t open the email they will feel like they are out of the loop and may have missed an offer that they will regret not taking advantage of.
#The unbulk bulk-folder test. Simply, if for some reason your email goes into the bulk folder, does the combination of from and subject line wording inspire trust and intrigue to get the recipient to move it into their inboxes?
Conclusion: Much to Learn, Much at Stake
Yes, this seems like a lot of fuss over 50 little characters. But those 50 characters may have the greatest impact on your email’s success. It pays to get them right.