This site did not show evidence of storing passwords in plaintext.
This site does allow secured connections (https)
This site did show a clear way to unsubscribe from their emails
This site does verify your email address.
Membership Emails
Below is a sample of the emails you can expect to receive when signed up to Zest Dent.
Hi Benjamin Anderson You are receiving this email to confirm your subscription to receive marketing communications from Zest Dental Solutions such as marketing emails, product update emails, calls, etc. If you'd like to confirm your subscription, please click on the button below.