Email Subject Lines and Their Click Rates; And So Much More

What is an Open Rate? There are two types of “open rates”- one for electronic mail (aka e-mail; see below) and one for physical mail (aka snail mail via the USPS or other physical mail carrier). The email open rate is a measure primarily used by marketers as an indication of how many people “view” or “open” the e-blast they send out. It is most commonly expressed as a percentage and calculated by dividing the number of email messages opened by the total number of email messages sent (excluding those that bounced.)

Do you track your email blasts? Or overall email correspondence? Open rates are typically tracked using a transparent pixel, or small transparent tracking image that is embedded in outgoing emails. When the client or browser display the email requests that image, then an “open” is recorded for that email by the image’s server. But! The email will not be counted as an open until one of the following occurs…The recipient enables the images in the email or even better, the recipient interacts with the email by clicking on a link

The open rate of any given email can vary based on a number of variables. For example, the type of industry the email is being sent to. In addition, the day and time an email is scheduled or sent to recipients can have an effect on email open rate. The length of an email’s subject line can also affect whether or not it is opened. See, there’s lots to be aware of! 


Subject line lengths and their corresponding open and click rates are as follows:

4–15 characters: 15.2% open; 3.1% click

16–27 characters: 11.6% open; 3.8% click

28–39 characters: 12.2% open; 4% click

40–50 characters: 11.9% open; 2.8% click

51+ characters: 10.4% open; 1.8% click

Check out this link; how to write the perfect subject line. The infographic tells the story you need to know.

Now, get to emailing! There are sales to be made!

This entry was posted in Uncategorized. Bookmark the permalink. Both comments and trackbacks are currently closed.