shawnmclean/Mandrill-dotnet — pull request #22 by JeremyWeir (2013-05-03 17:41:30+00:00)
Title: Added EmailMessage.important property

This prop lets mandrill know to let a message jump to the front of the message queue...
http://help.mandrill.com/entries/23664027-Does-Mandrill-allow-me-to-prioritize-messages-

(Was using your public nuget so I thought I'd go this route instead of maintaining our own fork)