srafael.fcai.uncu.edu.ar has no MX records.
Question and response
Question
dig srafael.fcai.uncu.edu.ar. MX
Answer
The response has no answer records.
Authority
fcai.uncu.edu.ar. 86400 SOA srafael.fcai.uncu.edu.ar. root.fcai.uncu.edu.ar. 2025120400 1200 120 1209600 86400
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0