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 my365.
You have been successfully registered at URL Shortener | Shorturl | My365 Cloud. To login you will have to activate your account by clicking the URL below.