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 sava-hotels-resorts.
We have received your request for signing up to ''E-novice Sava Hotels & Resorts (EN)''. You can confirm your request by click here or opening the link https://www.sava-hotels-resorts.com:443/en/newsletter/newsletter-registration?action=confirm&guid=H4dbdJOaJenq4RN&tid=16388 in your browser.