Hi Sergey
thank for the reply howerver I put the following code in the valid procedure, but everytime I am getting invalid input
as example and input in the field xxxxx@yyyy.com and still getting invalid input maybe I missed something
Thank you

LPARAMETERS tcEmailAddr
LOCAL loRegExp
loRegExp = CreateObject("VBScript.RegExp")
loRegExp.IgnoreCase = .T.
loRegExp.Pattern = '< Email Validation pattern you prefer here >'
RETURN loRegExp.Test(tcEmailAddr)