How to set WordPress login/registration system?

I am using a WordPress blog. For the last several days I am trying to set user login/registration system in my blog. I have tried with default meta log and user login plugin. When I give all info in registration form and press submit, then i got a message such as: Check your email for password and then try to login.

But unfortunately, I can not find this mail/password in my email inbox. Why this is happening and what is the correct procedure? Please help me.

Thank you

Check in your wordpress setting if you checked the : everyone can register and which Role they will have !

Try to use Simplr user registration form plugin it’s more good…

Goodluck

Thank you for your suggestion. But unfortunately it does not work with my blog. I tried several times.
Is there another suggestion from you? Please let me know.