{"id":4335,"date":"2018-03-15T00:00:00","date_gmt":"2018-03-15T00:00:00","guid":{"rendered":"https:\/\/www.litmus.com\/blog\/3-embarrassing-subject-line-mistakes-to-avoid\/"},"modified":"2025-12-08T10:06:54","modified_gmt":"2025-12-08T15:06:54","slug":"3-embarrassing-subject-line-mistakes-to-avoid","status":"publish","type":"post","link":"https:\/\/www.litmus.com\/blog\/3-embarrassing-subject-line-mistakes-to-avoid","title":{"rendered":"5 Embarrassing Subject Line Mistakes to Avoid"},"content":{"rendered":"

Subject lines are incredibly powerful. That\u2019s because they are one of the first things that subscribers look at when they receive an email and are trying to decide whether to open it. The subject line is second only to your sender name in importance, as you\u2019d expect with a permission-based channel like email.<\/p>\n

Marketers are clearly aware of the power of subject lines, but their efforts are often inconsistent and their results mixed. For instance, subject lines are the most A\/B tested email element, according to Litmus\u2019 2017 State of Email Creative<\/a>. But many of those tests are undermined by wrongly using open rates to determine the winner<\/a>, rather than deeper metrics like conversions.<\/p>\n

Also, some marketers believe in the power of subject lines so much that they think that:<\/p>\n