Domains with DNS TXT v=spf1 a mx include:_spf.prod.hydra.sophos.com include:spf.constantcontact.com include:cust-spf.exacttarget.com include:spf.mandrillapp.com include:_spf_uswest2.prod.hydra.sophos.com include:_spf_useast2.prod.hydra.sophos.com include:_spf_eucentral1.prod.hydra.sophos.com include:_spf_euwest1.prod.hydra.sophos.com include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.prod.hydra.sophos.com include:spf.constantcontact.com include:cust-spf.exacttarget.com include:spf.mandrillapp.com include:_spf_uswest2.prod.hydra.sophos.com include:_spf_useast2.prod.hydra.sophos.com include:_spf_eucentral1.prod.hydra.sophos.com include:_spf_euwest1.prod.hydra.sophos.com include:spf.protection.outlook.com -all.