Domains with DNS TXT v=spf1 a:mailexpert.nl include:_spf.senders.ottobock.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 a:mailexpert.nl include:_spf.senders.ottobock.com include:spf.protection.outlook.com -all.