Email Authentication
harpercollins.com
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~allDKIM
passCryptographic signature on outbound mail (selector: google).
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5ikv/zpvNScycd01IMXEpfuQBIG2gLeXaLP6mu28WwBih7ySilPZkxlW1Rz213CJEs0yKrpIALaKh+ku0Uw9TewztA7JM4WLBmv8iN69Ox7E9kLF7u+VV+MJXb4Mq0oWQM/a6WYFOlTlbI8c7BbfBw388PYApIJ4TKc+de4RzHGKNN4UukMFoz7l5MiZu+wJbklLBcSajlppxEgEI2jBRZiao8OR47SbF7bCXDI5OVkDeHSPc3pTWlGR1PyZp4vZC0fA6/tYQSckLKDFLCttpfWkpQyV36/T4uGI3ddcI8QoRISclVZRXLnlm3G4aMK1P3gRZlfT7cWb+RLA3KM31QIDAQAB
DMARC
passTells receivers what to do with mail that fails SPF/DKIM. Policy: reject.
v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
Mail Servers (MX)
5 mxb-00596a01.gslb.pphosted.com
5 mxa-00596a01.gslb.pphosted.com