sps.edu.do has no MX records.
Question and response
Question
dig sps.edu.do. MX
Answer
The response has no answer records.
Authority
sps.edu.do. 3600 SOA ns6.wixdns.net. support.wix.com. 2025021819 10800 3600 1209600 3600
Additional
. 0 OPT ; payload 512, xrcode 0, version 0, flags 0