Follow-ups, A/B tests & senders

Add a follow-up email to a campaign, test two subject lines against each other and send from more than one mailbox.

What you will learn

Follow-ups
Click Add email and set how long to wait after the previous one. Anyone who replies to an earlier email doesn't get the follow-up.
A/B tests
Click the plus next to an email for a version B. Half the people get A and half get B; switch off the weaker one when the replies are in.
Senders and limits
Under Settings, tick more mailboxes to spread the sending; each person keeps theirs for the follow-ups. Set each mailbox's daily limit under Apps; a new one warms up first.