Some times we need to send some business mail having document like credit card information,bank account number etc..... If this type of email goes to a hacker what they will do you know.
For keeping your mail protected with password follow the steps.
1.fist go to the link below...>>>>>>>>>>>>
PASSWORD PROTECT FOR EMAIL
see the screen shot instead....
Then fill the from with your messege and password and just send it.
3.When receiver got this he will ask to give password. just tell him the password to open it....like below
And then he can read it....