Email Authentication

ip.sb

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 include:spf.messagingengine.com -all

fail

Cryptographic signature on outbound mail (selector: fm1).

v=DKIM1; k=rsa; n=Intentionally_Left_Blank_As_Per_DKIM_Rotation_BCP; p=

pass

Tells receivers what to do with mail that fails SPF/DKIM. Policy: reject.

v=DMARC1; p=reject;

10 in1-smtp.messagingengine.com

10 in2-smtp.messagingengine.com