Use autoresponders and follow up with your subscribers automatically.

Using autoresponders you can follow up with your subscribers automatically sending a series of personalized newsletters to new subscribers at intervals you define.

Triggers.

Triggers automate your mailing lists management adding subscribers to a different mailing list when they open a specific email or sending subscribers a certain newsletter when a particular link is clicked etc. Thus, when you set up triggers, you can configure certain things to happen automatically when certain other events occur. .