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IPv4 addresses
0
IPv6 addresses
Terms
ip4:
212.12.56.174 / 32
pass
if the sender's IP is between
212.12.56.174 and 212.12.56.174 (inclusive).
212.12.56.174 and 212.12.56.174 (inclusive).
Nawork Internet Informationssysteme
AS9211
or else
a:
srs.work.de
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:212.12.56.174 a:srs.work.de -all