Utilitarianism and morality

Hi!


I'm currently researching some information about classical utilitarianism and I have come across with a doubt.
Reviewing the fact that utilitarianism seeks the ultimate option that maximizes the overall happiness in society, Is there any place for morality? Is there any incompatibility between morality and utilitarianism?
Or is every action proposed by a utilitarian government morally justified in so far as it enhances the overall happiness in a society?

If we accept the validity of the 3rd point, is it possible to say that the legitimated institution (state) permits actions that are not morally justified/ do not maximize the human welfare?



Thanks a lot, and apologize for my English writing skills.