Here is the procedure to test a mass email or newsletter.
1. Create your newsletter or mass email in the response library, using merge tags.
2. Next, set up a Group called “Mass email test.” Add yourself and whoever else you’d like to send a test to as contacts.
3. Click your test group and create the test email by clicking the Newsletter button. Select your newsletter from the Response Library.
4. Click send and check your email on different devices to see how it looks.
While you typically send out tests immediately, remember that for your real mass emails or newsletters, it’s best to pick a send time that is best for your recipients.