pasp.gov.do has no MX records.
Question and response
Question
dig pasp.gov.do. MX
Answer
The response has no answer records.
Authority
pasp.gov.do. 600 SOA ns31.domaincontrol.com. dns.jomax.net. 2017101101 28800 7200 604800 600
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0