Problem with sending email notifications to customers

[Ufasimba]

Hello everybody,

 

I installed a 1.6.1.4 PrestaShop. The host is Godaddy and PHP version is 5.4. I use the mail () function in PHP.
I have the "Mail Alert" module installed and configured.
I'm still in the testing phase and only the payment by check and bank transfer are configured.
My problem is that notifications to be received by the client:
-link activation after registration,
-E-mail indicating an order
-E-mail indicating "acceptance of payment" or "order preparation" or other
never reach the customer.
It is the same for notifications to customers through the "Order".
Or PS shows me the message on green background as what the email was successfully sent.
 

The supposedly sent notifications are listed in section Advanced Settings -> Email


For information on my PS contact form works because I receive messages posted to the email address I want.


Other information:
In Advanced Settings -> Email -> Test your mail setup, I noticed that if I put an address linked to my domain name,
I get the mail to such address as sender with the email I use to log in as administrator PS.
But if I put an address @ yahoo.fr for example, no test email is received.

Thank you for your lights so customers notifications go as it should.

Thank you.
Best regards.