TIP! Use A/B testing to test subject line variations. To do this, simply select an email and then send it to one half of your mailing list with one subject line, and the other half with a different subject line.…
TIP! Use A/B testing to test subject line variations. To do this, simply select an email and then send it to one half of your mailing list with one subject line, and the other half with a different subject line.…