1 / 10
Lookups
0
Issues
65,538
IPv4 addresses
1.21 ⋅ 10
24
IPv6 addresses
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
2 IPv6 addresses
or else
ip4:
195.113.0.0 / 16
pass
if the sender's IP is between
195.113.0.0 and 195.113.255.255 (inclusive).
195.113.0.0 and 195.113.255.255 (inclusive).
CESNET z.s.p.o.
AS2852
or else
ip6:
2001:718:1e03:: / 48
pass
if the sender's IP is between
2001:718:1e03:: and 2001:718:1e03:ffff:ffff:ffff:ffff:ffff (inclusive).
2001:718:1e03:: and 2001:718:1e03:ffff:ffff:ffff:ffff:ffff (inclusive).
CESNET z.s.p.o.
AS2852
or else
?all
Don't state if this IP is allowed to send this email.
Included records
v=spf1 mx ip4:195.113.0.0/16 ip6:2001:718:1e03::/48 ?all