dns1.dga.gov.do has no MX records.
Question and response
Question
dig dns1.dga.gov.do. MX
Answer
The response has no answer records.
Authority
dga.gov.do. 3600 SOA sdq-dns01. administrator.dga.gov.do. 201205361 7200 1200 1296000 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0