Domains with DNS TXT v=spf1 a mx include:spf.protection.outlook.com include:_spf.hostnet.nl include:spfklanten.nl include:_spf.exsilia.net include:_spf.mailer.twinfield.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.protection.outlook.com include:_spf.hostnet.nl include:spfklanten.nl include:_spf.exsilia.net include:_spf.mailer.twinfield.com -all.