Sending Email Error

Hi,

I'm using Dynamics AX 2012 R2 and setup alerts to send automatically to an email address. When i'm using the email of our client it cannot send the email and i cannot see the error logs or the cause of its errors. Is there a way to see what causing the email not to send?

I test the client email account on the outlook and sent email successfully. Also when i used a google email account without the encryption setup inside ax it send up successfully.

Any suggestion?

Thanks.