Email Authentication

npmjs.com

SPF

pass
Declares which servers may send mail for this domain.
v=spf1 include:stspg-customer.com include:mail.zendesk.com include:_spf.google.com include:5326678.spf10.hubspotemail.net include:servers.mcsv.net include:amazonses.com ~all

DKIM

pass
Cryptographic signature on outbound mail (selector: google).
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwfi005LL9E/q2rpJ4nuYD/+6+7FesyC29t8ohnrFxuq5/UFleMAu7mxpxEAp08NVCJcwCErMiBI/Ybtv5EIqvrtSSGr55uyElCuevZfmRpIFBLx73N05Ke1zPzQS2KXI75c6rSeKygjhXWGz1z77D1LGYcskxmVhja5wnqJXhpDvQftzcOJqwmKIc37nW8FuoBiTRtcglnue6uZTC5Pi3prT8jd9zSLIZzKWZ+Odj3uuAKKgkXuOlwX1OhcCKr9Vt8smja5LH1L1USXjwmibeu8AsYFEAapIq5doG9cAwiMko0KGDMO8lIl4WP1YEvlDNae1fIxnHLVofBp+gIuk+QIDAQAB

DMARC

warning
Tells receivers what to do with mail that fails SPF/DKIM. Policy: quarantine.
v=DMARC1; p=quarantine;  pct=5; rua=mailto:dmarc@github.com,mailto:d@rua.agari.com

Mail Servers (MX)

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
30 alt2.aspmx.l.google.com
40 aspmx2.googlemail.com
50 aspmx3.googlemail.com