Email Authentication

posteo.de

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 ip4:185.67.36.0/23 ip6:2a05:bc0:1000::/47 ~all

none

Cryptographic signature on outbound mail (selector: none).

No record published.

warning

Tells receivers what to do with mail that fails SPF/DKIM. Policy: none.

v=DMARC1; p=none; sp=quarantine; adkim=s; aspf=s

10 mx04.posteo.de

10 mx01.posteo.de

10 mx02.posteo.de

10 mx03.posteo.de