Email Authentication

firmy.cz

SPF

pass

Declares which servers may send mail for this domain.

v=spf1 include:spf.szn.cz ip4:178.251.187.28 ip6:2a00:1ed0:45::d3 ~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; rua=mailto:abuse@seznam.cz,mailto:dmarc-rua@mailkit.com;

10 bb4bdcba74d9f0f3.mx1.emailprofi.seznam.cz

20 bb4bdcba74d9f0f3.mx2.emailprofi.seznam.cz