In portal-ext.properties, there are these two properties. There two properties correspond to "Allow strangers to create accounts?" and "Allow strangers to create accounts with a company email address? ". Since you've already set these and "Mail Domain (Required)", it should work. Which version and bundle of Liferay are you using?
#
# Set this to true if strangers can create accounts with email addresses
# that match the company mail suffix. This property is not used unless
# "company.security.strangers" is also set to true.
#
company.security.strangers.with.mx=true
#
# Set this to true to allow strangers to create accounts and register
# themselves on the portal.
#
company.security.strangers=true
Por favor, identifíquese para poder marcar esto como inapropiado