1 / 10
Lookups
0
Issues
2
IPv4 addresses
1
IPv6 address
Terms
ip4:
89.190.64.21 / 32
pass
if the sender's IP is between
89.190.64.21 and 89.190.64.21 (inclusive).
89.190.64.21 and 89.190.64.21 (inclusive).
"N_SYS s.r.o."
AS41088
or else
ip6:
2a00:bfe0:0:2::2 / 128
pass
if the sender's IP is between
2a00:bfe0:0:2::2 and 2a00:bfe0:0:2::2 (inclusive).
2a00:bfe0:0:2::2 and 2a00:bfe0:0:2::2 (inclusive).
"N_SYS s.r.o."
AS41088
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
fail
the email's SPF check.
Included records
v=spf1 ip4:89.190.64.21 ip6:2a00:bfe0:0:2::2 a -all