fermat.uncu.edu.ar has no MX records.
Question and response
Question
dig fermat.itu.uncu.edu.ar. MX
Answer
The response has no answer records.
Authority
itu.uncu.edu.ar. 18000 SOA pascal.itu.uncu.edu.ar. root.pascal.itu.uncu.edu.ar. 2024121800 3600 3600 1209600 18000
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0