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 obedyprodeti.
This is the confirmation e-mail for "Mailing list" Click the link bellow to confirm your subscription. http://www.obedyprodeti.cz/newsletter-subscription/5bbdbc15dfcd7fbcd9c5c574b464e0a6/en