Compare Mailing Results - By Subject Line Length

Your first impression is very important. When you are sending email, you've got two elements to create that positive first impression. As you go sailing into the inbox you want to pay special attention to your sender information and your subject line.

When it comes to subject lines, you can retrieve general stats from the internet about how long they should be... or you could find out for yourself what works best for your organization. Send out a handful of mailings with varying subject line lengths and then head to the Mailing Summary Reports to see what your data tells you.


Navigate to Mailings > Reports > Mailing Summary Report or navigate to Mailings > View Mailings > click on Reports in the upper right corner. Once you have done so, you may follow the steps to filter the exact mailings you are looking to report on.

Click the View Reports tab

Expand the Compare Mailing Results open in the Reports panel

Select By Subject Line Length

By now, you will be able to see which subject line length is the best for the mailings you have chosen to analyze. Here is a sample of what you can expect upon opening up this report:

This chart area can be customized to include many types of data. Click on the Columns button to select which pieces of data you'd like to include in your report. Notice that you can remove all columns for a fresh start, add all columns to jam pack your report full of every piece of data available, or add/subtract as you see fit:

It may even be in your best interest to filter based on any data that may be available in the columns you've selected. Click the Search button to refine your report further:

Share Your Insights

To share this information, simply click the Export button at the top of the report and click Download Excel File in the resulting pop-up.

Let's Change the Subject... Line Length!

Analyzing the length of the subject lines not only tells you where you should land in your character count, but it also gives you a perspective in your subject line creativity. Make a good first impression, have fun, and if you have to, change the subject!