o2.cz SPF record

10 / 10 Lookups
0 Issues
3,134 IPv4 addresses
3.69 â‹… 10 19 IPv6 addresses
v=spf1 include:out.o2.cz ip4:194.228.41.112 ip4:194.228.41.114 a:aa.iol.cz ip4:90.176.151.28 include:spf.mailforce.cz include:spfe.targito.com include:o2.secar.cz ip4:74.121.51.138 include:spf.smartemailing.cz include:spf.finforce.cz -all Copied

Terms

include:
out.o2.cz
Evaluate this SPF record and pass if it
passes.
or else
ip4:
194.228.41.112 / 32
pass if the sender's IP is between
194.228.41.112 and 194.228.41.112 (inclusive).
O2 Czech Republic, a.s.
AS5610
or else
ip4:
194.228.41.114 / 32
pass if the sender's IP is between
194.228.41.114 and 194.228.41.114 (inclusive).
O2 Czech Republic, a.s.
AS5610
or else
pass if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
18 IPv6 addresses
or else
ip4:
90.176.151.28 / 32
pass if the sender's IP is between
90.176.151.28 and 90.176.151.28 (inclusive).
O2 Czech Republic, a.s.
AS5610
or else
Evaluate this SPF record and pass if it
passes.
or else
Evaluate this SPF record and pass if it
passes.
or else
include:
o2.secar.cz
Evaluate this SPF record and pass if it
passes.
or else
ip4:
74.121.51.138 / 32
pass if the sender's IP is between
74.121.51.138 and 74.121.51.138 (inclusive).
Amazon.com
AS14618
or else
Evaluate this SPF record and pass if it
passes.
or else
Evaluate this SPF record and pass if it
passes.
or else
-all
fail the email's SPF check.

Included records

v=spf1 include:out.o2.cz ip4:194.228.41.112 ip4:194.228.41.114 a:aa.iol.cz ip4:90.176.151.28 include:spf.mailforce.cz include:spfe.targito.com include:o2.secar.cz ip4:74.121.51.138 include:spf.smartemailing.cz include:spf.finforce.cz -all
6 x ip4 -all
6 x ip4 -all
10 x ip4 ~all
4 x ip4 -all
11 x ip4 include:spf1.smartemailing.cz ~all
7 x ip4 3 x ip6 include:spf2.smartemailing.cz ~all
9 x ip4 include:spf3.smartemailing.cz ~all
5 x ip4 2 x ip6 -all

IP ranges

O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
O2 Czech Republic, a.s.
AS5610
ADC Systems s.r.o.
AS212325
VSHosting s.r.o.
AS43541
VSHosting s.r.o.
AS43541
CASABLANCA INT a.s.
AS15685
CASABLANCA INT a.s.
AS15685
CASABLANCA INT a.s.
AS15685
Amazon.com
AS16509
Amazon.com
AS16509
Amazon.com
AS16509
Amazon.com
AS16509
Amazon.com
AS16509
Amazon.com
AS16509
Amazon.com
AS16509
Bird.com
AS23528
Bird.com
AS23528
Bird.com
AS23528
RADIOKOMUNIKACE a.s.
AS25248
RADIOKOMUNIKACE a.s.
AS25248
RADIOKOMUNIKACE a.s.
AS25248
RADIOKOMUNIKACE a.s.
AS25248
Amazon.com
AS14618
Savvy s.r.o.
AS44770
Savvy s.r.o.
AS44770
Savvy s.r.o.
AS44770
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Savvy s.r.o.
AS44770
Webglobe, s.r.o.
AS29134
The Constant Company
AS20473
The Constant Company
AS20473
The Constant Company
AS20473
Webglobe, s.r.o.
AS29134
WEDOS Internet, a.s.
AS197019
Webglobe, s.r.o.
AS29134
WEDOS Internet, a.s.
AS197019
Akamai Connected Cloud
AS63949
Akamai Connected Cloud
AS63949
WEDOS Internet, a.s.
AS197019
WEDOS Internet, a.s.
AS197019
WEDOS Internet, a.s.
AS197019
DigitalOcean
AS14061
CASABLANCA INT a.s.
AS15685
MasterDC s.r.o.
AS24971
SH.cz s.r.o.
AS39392
The Constant Company
AS20473
The Constant Company
AS20473
The Constant Company
AS20473
DigitalOcean
AS14061
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
Webglobe, s.r.o.
AS29134
MasterDC s.r.o.
AS24971
MasterDC s.r.o.
AS24971
Quantcom, a.s.
AS29208
Quantcom, a.s.
AS29208
Quantcom, a.s.
AS29208
MasterDC s.r.o.
AS24971
Quantcom, a.s.
AS29208