claec.edu.do.spf.auto.dnssmarthost.net has no A records.
Question and response
Question
dig _2dc8dbf3b66430882a252fde5611f3c3.spf.dnssmarthost.net. A
Answer
The response has no answer records.
Authority
spf.dnssmarthost.net. 86400 SOA ns1.spf.dnssmarthost.net. admins.siteground.com. 9077139 86400 7200 3600000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0