3 / 10
Lookups
0
Issues
458,791
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 ip4:178.17.1.65 ip4:178.17.1.67 ip4:178.17.3.3 ip4:178.17.10.234 ip4:178.17.0.34 ip4:77.93.223.89 ip6:2a00:1238:2:310::/64 ip6:2a00:1238:2:311::/64 ip6:2a00:1238:2:312::/64 ip6:2a03:c20:3:3::/64 include:_mailer.uvtnet.cz include:spf.protection.outl
ook.com -all
Copied
Terms
ip4:
178.17.1.65 / 32
pass
if the sender's IP is between
178.17.1.65 and 178.17.1.65 (inclusive).
178.17.1.65 and 178.17.1.65 (inclusive).
UVT Internet s.r.o.
AS50825
or else
ip4:
178.17.1.67 / 32
pass
if the sender's IP is between
178.17.1.67 and 178.17.1.67 (inclusive).
178.17.1.67 and 178.17.1.67 (inclusive).
UVT Internet s.r.o.
AS50825
or else
ip4:
178.17.3.3 / 32
pass
if the sender's IP is between
178.17.3.3 and 178.17.3.3 (inclusive).
178.17.3.3 and 178.17.3.3 (inclusive).
UVT Internet s.r.o.
AS50825
or else
ip4:
178.17.10.234 / 32
pass
if the sender's IP is between
178.17.10.234 and 178.17.10.234 (inclusive).
178.17.10.234 and 178.17.10.234 (inclusive).
UVT Internet s.r.o.
AS50825
or else
ip4:
178.17.0.34 / 32
pass
if the sender's IP is between
178.17.0.34 and 178.17.0.34 (inclusive).
178.17.0.34 and 178.17.0.34 (inclusive).
UVT Internet s.r.o.
AS50825
or else
ip4:
77.93.223.89 / 32
pass
if the sender's IP is between
77.93.223.89 and 77.93.223.89 (inclusive).
77.93.223.89 and 77.93.223.89 (inclusive).
MasterDC s.r.o.
AS24971
or else
ip6:
2a00:1238:2:310:: / 64
pass
if the sender's IP is between
2a00:1238:2:310:: and 2a00:1238:2:310:ffff:ffff:ffff:ffff (inclusive).
2a00:1238:2:310:: and 2a00:1238:2:310:ffff:ffff:ffff:ffff (inclusive).
UVT Internet s.r.o.
AS35236
or else
ip6:
2a00:1238:2:311:: / 64
pass
if the sender's IP is between
2a00:1238:2:311:: and 2a00:1238:2:311:ffff:ffff:ffff:ffff (inclusive).
2a00:1238:2:311:: and 2a00:1238:2:311:ffff:ffff:ffff:ffff (inclusive).
UVT Internet s.r.o.
AS35236
or else
ip6:
2a00:1238:2:312:: / 64
pass
if the sender's IP is between
2a00:1238:2:312:: and 2a00:1238:2:312:ffff:ffff:ffff:ffff (inclusive).
2a00:1238:2:312:: and 2a00:1238:2:312:ffff:ffff:ffff:ffff (inclusive).
UVT Internet s.r.o.
AS35236
or else
ip6:
2a03:c20:3:3:: / 64
pass
if the sender's IP is between
2a03:c20:3:3:: and 2a03:c20:3:3:ffff:ffff:ffff:ffff (inclusive).
2a03:c20:3:3:: and 2a03:c20:3:3:ffff:ffff:ffff:ffff (inclusive).
UVT Internet s.r.o.
AS50825
or else
include:
_mailer.uvtnet.cz
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
or else
include:
spf.protection.outlook.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Microsoft 365 / Outlook
Inbox software
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:178.17.1.65 ip4:178.17.1.67 ip4:178.17.3.3 ip4:178.17.10.234 ip4:178.17.0.34 ip4:77.93.223.89 ip6:2a00:1238:2:310::/64 ip6:2a00:1238:2:311::/64 ip6:2a00:1238:2:312::/64 ip6:2a03:c20:3:3::/64 include:_mailer.uvtnet.cz include:spf.protection.outlook.com -all
1 x ip4 1 x ip6 include:_spf.cmail.uvtnet.cz -all
1 x ip4 1 x ip6 -all
6 x ip4 5 x ip6 -all
IP ranges
2a00:1238:2:310::
/ 64
UVT Internet s.r.o.
AS35236
2a00:1238:2:310::
2a00:1238:2:310:ffff:ffff:ffff:ffff
2a00:1238:2:311::
/ 64
UVT Internet s.r.o.
AS35236
2a00:1238:2:311::
2a00:1238:2:311:ffff:ffff:ffff:ffff
2a00:1238:2:312::
/ 64
UVT Internet s.r.o.
AS35236
2a00:1238:2:312::
2a00:1238:2:312:ffff:ffff:ffff:ffff
2a01:111:f403:8000::
/ 51
Microsoft
AS8075
2a01:111:f403:8000::
2a01:111:f403:9fff:ffff:ffff:ffff:ffff
2a01:111:f403:c000::
/ 51
Microsoft
AS8075
2a01:111:f403:c000::
2a01:111:f403:dfff:ffff:ffff:ffff:ffff
2a01:111:f403:f000::
/ 52
Microsoft
AS8075
2a01:111:f403:f000::
2a01:111:f403:ffff:ffff:ffff:ffff:ffff