1. Click on "Add New Rule" button.

2. Select the email template you want to use as a email reminder for sending. You can create and customize email templates on the emails settings page.

3. Configure one or several conditions.
Note. If your condition is for a date field, then you can use a configuration that can be used in the strtotime function.

For example:
Reminder. 1 day before the event: TODAY + 1 DAY
Follow-up email. 7 days after the event: TODAY - 7 DAYS
After 1.5 months: TODAY - 1 MONTH - 15 DAYS

4. Click on Create Rule button.