Email Authentication

udemy.com

SPF

pass
Declares which servers may send mail for this domain.
v=spf1 include:_spf.google.com include:mktomail.com include:spf.mtasv.net include:mail.zendesk.com include:_spf.salesforce.com -all

DKIM

pass
Cryptographic signature on outbound mail (selector: default).
v=DKIM1; k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCw3p2yXg38Y2d/0oi7+aIudl5F2Qktxp/Nceexu1i8V91Pty7XvLS9H2w/SqcxZIAYgL5pJBgUwm7vkfszkk9Q86Mx97hFCTzsUwozDkSoMYoxCzrFZhHuk5Fd/TDpe6sJ8kKiIZZ1ugyeHLmq0C/xX9VOyE0GR5AbtttxHYNFpQIDAQAB

DMARC

pass
Tells receivers what to do with mail that fails SPF/DKIM. Policy: reject.
v=DMARC1; p=reject; rua=mailto:dmarc-udemy@udemy.com; ruf=mailto:dmarc-udemy@udemy.com; rf=afrf; fo=1; pct=100

Mail Servers (MX)

1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com