mx1.antel.com.uy has no MX records.
Question and response
Question
dig mx1.antel.com.uy. MX
Answer
The response has no answer records.
Authority
antel.com.uy. 1800 SOA portal1.antel.com.uy. seginternet.antel.com.uy. 2026012301 10800 3600 432000 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0