How to send automated periodic reminders to tenants

[Andy S.]

Hello friends,

I was able to use an Outlook email to send periodic reminder (laundry list of things) to my tenants. For example reminder to replace HVAC filter every 3 months, to ensure pets are vaccinated yearly, to ensure tenant sends me copies of renewed vehicle registrations and insurance etc. However in outlook 2021 Pro there is no way to go in options to deliver this email once every quarter. It only allows 1 delivery of email at a future date, but no recurrence option allowed (call it Outlook 2021 limitation.

Have any of you found an elegant way, preferably an unpaid one to send these reminders?  

Thanks