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Validate email addresses

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Let’s say that you have a field named  ‘Email’ which you use to capture an email address and you want to ensure that users enter a valid email address.


This can be accomplished by adding a simple rule within the Logic screen that validates the contents of the ‘Email’ field.

  1. Title: Email format validation
  2. Conditions: Custom js function
  3. Steps: Field – set custom error



let emailRegExp = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/g;
getValue('Email').match(emailRegExp) == null​




Once you have configured this it should work like this:



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