Email Marketing Subject Lines you Never Want to Use

Published by: Andrew Paul    |   Category: Blog, Email Deliverability, Email Marketing    

Use Common Sense when choosing your email marketing subject lines.

Every email marketer or email campaign deployed has one goal, to get the email delivered. Using words like “free”, “no obligation”, “guaranteed” or anything in ALL CAPS, in your subject lines, will do nothing more than reduce your chances of ever getting your email creative delivered to the users inbox.

Below is a list of these words you never want to use in any email marketing
subject line:


The best way to determine if the words used in your subject line are good or bad, use common sense. If it sounds spammy or like it will be filtered out, don’t use it. It’s better to use just a couple of keywords, to keep the subject line simple, and use subject lines that are vague. Remember, all you are trying to do is peak someone’s interest and get them to open your email to see what you are offering. NEVER sell or try to sell in the subject line.

OK, so how do I determine the best subject line to use?

There is no definative answer to this question, other than some simple advise. Be vague and describe the subject of your email. Period, that’s it, just keep it simple. We normally recommend making any subject line no more than 5 words in total. Keep it short and simple. When it comes to email marketing, the best subject lines tell what’s inside, and the worst subject lines sell what’s inside.



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2 Responses to Email Marketing Subject Lines you Never Want to Use

  1. Spence says:

    You guy’s have some great, infomative information in your blogs. Plus they are very well written. Keep up the good work.

  2. Logan Wenger says:

    Great resource! Every time I browse my spam folder there are hundreds of emails consisting of subject lines in the aforementioned text. As you mentioned there are no golden keys to the best subject lines to get passed the spam filters.

    I think keeping the subject lines relevant to the topic and audience is usually the safest and best way to send marketing emails. As you mentioned, keep it simple.