hostex.unlp.edu.ar has no MX records.
Question and response
Question
dig hostex.unlp.edu.ar. MX
Answer
The response has no answer records.
Authority
unlp.edu.ar. 3600 SOA anubis.unlp.edu.ar. root.anubis.unlp.edu.ar. 2026011338 28800 900 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0