6 / 10
Lookups
0
Issues
9
IPv4 addresses
4
IPv6 addresses
v=spf1 ip4:147.231.106.199/32 ip4:147.231.106.194/32 a:smtpstel.asu.cas.cz a:rs.cesnet.cz a:rs1.cesnet.cz a:rs2.cesnet.cz a:gandalf.ig.cas.cz mx ~all
Copied
Terms
ip4:
147.231.106.199 / 32
pass
if the sender's IP is between
147.231.106.199 and 147.231.106.199 (inclusive).
147.231.106.199 and 147.231.106.199 (inclusive).
CESNET z.s.p.o.
AS2852
or else
ip4:
147.231.106.194 / 32
pass
if the sender's IP is between
147.231.106.194 and 147.231.106.194 (inclusive).
147.231.106.194 and 147.231.106.194 (inclusive).
CESNET z.s.p.o.
AS2852
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
a:
rs.cesnet.cz
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
1 IPv6 address
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
1 IPv6 address
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
1 IPv6 address
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
1 IPv6 address
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 ip4:147.231.106.199 ip4:147.231.106.194 a:smtpstel.asu.cas.cz a:rs.cesnet.cz a:rs1.cesnet.cz a:rs2.cesnet.cz a:gandalf.ig.cas.cz mx ~all