Email Authentication
mlb.com
SPF
passDeclares which servers may send mail for this domain.
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:mailgun.org ~allDKIM
passCryptographic signature on outbound mail (selector: selector1).
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC7y0tAGs62oH6XrCYHUctOMs/t4AkYWnX+QhCCcnH4XqouTQifrKkYFZ9wewK+SGY2LyyUjL8DR8BWsX2z5cZlqUvX0/8/gYpp82OFtWGXIl/VtC3IP0/sAiA1EZrG8zuKRfIWIcbIjmVvF/I9F0nRRyyV2/flCK02TBTDYQ/S7wIDAQAB; n=1024,1460564825,1476376025
DMARC
passTells receivers what to do with mail that fails SPF/DKIM. Policy: reject.
v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email
Mail Servers (MX)
1 mlb-com.mail.protection.outlook.com