How to check if the user enters email in correct format while submitting the service request form?

[omkar2]

The user should not be able to submit the form if the email is in incorrect format and prompted to correct it.

PS: I am using the username field above to auto-populate the user's email using catalog client script. Please help! Thanks.

[lsoileau]

This does not seem to work on the portal (Jakarta). Email icon shows, but the item will still submit and no error message is given regardless of entry. Note: that it works as it should from the instance service catalog.