I have received the decision on a manuscript that I have submitted. The editor in chief decided to reject the paper stating that the reviewers are advising against the publication of the manuscript.

There were four reports, two suggesting minor revisions and publication of the paper. The other two reports had major concerns which are not related to the submitted manuscript, which lead me to believe that they were sent to us by mistake.

Are these kinds of mistakes possible by the editor? How should I contact the editor in order to get some clarifications?