COM.UY has no MX records.
Question and response
Question
dig COM.UY. MX
Answer
The response has no answer records.
Authority
com.uy. 3600 SOA ns1.anteldata.com.uy. dns-admin.antel.net.uy. 2603070007 10800 1800 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0