Validador de email regex jsf

email.xhtml

					<p:outputLabel value="Email:" for="email" />
					<p:inputText id="email" value="#{seuBeanAqui}"
						required="true" validatorMessage="Email inválido">
						<f:attribute name="type" value="email" />
						<f:passThroughAttribute name="placeholder" value="E-mail" />
						<f:validateRegex
							pattern="[\w\.-]*[a-zA-Z0-9_]@[\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]" />
						<f:ajax event="blur" render="messageEmail" />
					</p:inputText>