Domains with DNS TXT v=spf1 include:spf.protection.office365.us a ip4:184.173.239.119 ip4:98.152.129.158 a:smtp-relay.oncallit.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.office365.us a ip4:184.173.239.119 ip4:98.152.129.158 a:smtp-relay.oncallit.com -all.