With Undersend, you can create and send personalized marketing campaigns to your users based on their activities and properties. It's ideal for SaaS. Undersend is a tool for web applications to automate their email communications to users. You can trigger a message when a user does or doesn't do an action. Each email can be personalized by the user properties like first name, sign up date, or whatever you want. Personalized messages have a more significant impact on users. Finally, set the campaign goal, measure results, and edit emails to improve outcomes.