Email Authentication
ntt.com
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:spf.protection.outlook.com include:spf01.ntt.com include:spf02.ntt.com include:spf03.ntt.com include:spf04.ntt.com ~all
DKIM
passCryptographic signature on outbound mail (selector: selector1).
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCmOvAnlPh8dhPFVn/t6FT5eYQiI8QsAZHeotSfYKpAiNjj/hQlUBJ1ZoAszwJcpPM1Nv73r6p2OuNsBRrNCW6R4oOmsKrfnZ9H/l7hmPTisxhDxBPgdOrYCzYv9mfBy/J/YxlrNZjy+H6XO0my8sVJ/wWNq8AJz1pf3mihPNh/dQIDAQAB; n=1024,1498757579,1514568779
DMARC
passTells receivers what to do with mail that fails SPF/DKIM. Policy: quarantine.
v=DMARC1; p=quarantine; sp=none; rua=mailto:nttcom00001-ra@dmarc25.jp
Mail Servers (MX)
10 ntt-com.mail.protection.outlook.com