TheraNest does not have a mass email or text functionality. There are two options for getting any message out to your clients in mass related to COVID-19 or anything else.
Send Mass Secure Message
The Secure Messaging feature is a HIPAA compliant messaging feature that allows you to communicate to all active clients with a client portal account. It acts as a BCC feature. Click here for the steps.
Grab Email List and Send Outside of TheraNest
If you want to make sure you get all clients and not just those with a client portal account you can email outside of TheraNest. You'll want to export your client list following the directions here. You can copy the entire Email column and paste it into the **BCC field** of an email. Put your own email into the TO field.