Yesterday, I sent an email with an inquiry regarding a job opening at one of the US military colleges. While I received a quick response, I was a touch "bothered" (as in "hot and bothered") by the way it was worded. I had signed the email "Marc" right over my signature line which reads "Marc W.D. Tyrrell, Ph.D." The response was rather terse and addressed to "Mr. Tyrrell". Is this a normal form of address from a staff person who is listed as the email contact for a job opening?

Marc