send document as email selects wrong client osx EL Capitan

I try to send a document through File->send->email document but LibreOffice then opens mail.app, which is not my default mail client. How can I get LibreOffice to send the document through airmail? Yes I have set Airmail as default client in mail.app

I am using airmail Beta v 2.61 and LibreOffice 5.0.4.2 and OSX El Capitan 10.11.2

Thanks