On the Basic Settings > Accounts >Send user account passwords in emails > Disable

(When disabled, passwords to user accounts will be replaced with a dummy text for security reasons.)

I received the dummy text as "Your_password", its the dummy text?

It would be better to have some other dummy text like ***

And also, after resetting the password "the password" being emailed.

But there's no purpose of sending password over email when we use dummy text for passwords.