Email Authentication

defensa.com

SPF

pass
Declares which servers may send mail for this domain.
v=spf1 a mx ip4:37.187.135.156 ip4:57.128.95.62 ~all

DKIM

pass
Cryptographic signature on outbound mail (selector: default).
v=DKIM1; k=rsa; t=y; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDKkR3QmY80ow57AL427vOxKt2m6gJIZ2u2B4fXyVZTgrF6k52rh0aDmGkTgbnUDi0iPg7pQDdwtGLIO6+mCZbgK6w47/MCdZTm1p9334Ys2k21kEgusuA8ChdTHy05gTs7KzerQtodABVVoxWX9vNHPp+yZWcrTp1KLq7LFCgyGwIDAQAB

DMARC

warning
Tells receivers what to do with mail that fails SPF/DKIM. Policy: none.
v=DMARC1; p=none; rua=mailto:postmaster@defensa.com

Mail Servers (MX)

10 mail.defensa.com