Email Authentication

computerbase.de

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 mx ip4:212.83.33.128/28 ip6:2a00:f48:2000:1::/64 include:mailbox.org include:amazonses.com ~all

none

Cryptographic signature on outbound mail (selector: none).

No record published.

pass

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

v=DMARC1; p=reject

10 mxext1.mailbox.org

10 mxext3.mailbox.org

10 mxext2.mailbox.org

10 mxext4.mailbox.org