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Terms
ip4:
91.137.200.250 / 32
pass
if the sender's IP is between
91.137.200.250 and 91.137.200.250 (inclusive).
91.137.200.250 and 91.137.200.250 (inclusive).
OPC Networks Kft.
AS24822
or else
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 ip4:91.137.200.250 a ~all