Trouble on ....Send email to input.email.

Trouble on ....Send email to input.email.

Hi,
I have a form with 3 fields ( name - email - number)
I want to send an email to <email field -- input.email> as soon as the person enters the email and goes to the next field ...

I tried placing the script on
Email -->On User Input &
Email --->On Update.

Code:-
SendMail
{
From : Zoho.adminuserid
To :input.email
Subject : "verification"
Message :"<p>email---On Update</p>" ( this is to identify which one triggers the sendmail.
}








But, at both times, the mail does not reach the address given in the form.
I have shared the application with suppourt,
Can someone please look into to it.
Thank you in advance
Regards.