"v=spf1 ip4:213.228.128.0/22 mx ?all"
Question and response
Question
dig netvisao.pt. SPF
Answer
netvisao.pt. 86400 SPF "v=spf1 ip4:213.228.128.0/22 mx ?all"
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0