The content of the email field has to be in lower case.
When the user submits the form check if the email is in lower case.
If the validation is OK, the form is sent.
If the validation is not OK, show an error message to the user near the submit button informing them of the error, and the form is not sent.
simple email validation:
The content of the email field has to be in lower case. When the user submits the form check if the email is in lower case. If the validation is OK, the form is sent. If the validation is not OK, show an error message to the user near the submit button informing them of the error, and the form is not sent.