You guys didn't have official mobile app, or OTP (did you?). Every time I received email notifications, i feel wary and anxious. Is this message come from parallax? Is it a phishing email? Should I check email header? Should I check whether the URL is legit when I clicked the button? Your domain name also little bit funny and long " app.withparallax.com ". My humble suggestion is, can you please provide a way to put "secret keyword" like Wise.com ? Please google "secure communication code" of wise.com . It is very simple yet clever idea for email based communication.