AddNullServerInstanceMDTest
waitForElementPresent link=Portal Instances
clickAtAndWait link=Portal Instances
clickAtAndWait //input[@value='Add']
type _135_webId liferay1.com
type _135_virtualHost localhost1
type _135_mx
clickAtAndWait //input[@value='Save']
assertTextPresent You have entered invalid data. Please try again.
assertTextPresent Please enter a valid mail domain.