Viber displays a link to the site in the chat instead of the sent email?

Question

Viber

For example, I try to send mail in a chat, let's say [email protected], then the following goes to the chat: http://[email protected]
Why is that?
This does not happen with mail.ru and yandex.ru mailboxes.

PS links to our corporate mail are also incorrect, for example, [email protected] turns into http://[email protected]