student.rit.edu has no MX records.
Question and response
Question
dig student.rit.edu. MX
Answer
The response has no answer records.
Authority
student.rit.edu. 86400 SOA ns1.rit.edu. root.rit.edu. 131873080 3600 600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0