SafeMailer’s cold email automation app lets you run A/B test for multiple subject lines, to find out which on suits the best for your campaign.

You can run an A/B test by clicking on “Enable A/B testing” while creating an email campaign. You can run an A/B test for up to 4 different subject lines at a single time.

Once you have run an A/B test, the next step is to check the performance and find out which subject line worked the best.

For this click on the campaign on the campaign dashboard. On the campaign details page click on the “A/B Testing” tab.

Here you can see the performance of all four subject lines. You can see how many emails were sent for each subject line, how many got bounced, and how many were opened.

You can select the best-performing subject line (i.e. the subject line with the highest opening rate) to run your main email campaign.