7 / 10
Lookups
0
Issues
616,454
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 a:dec52.lf1.cuni.cz a:out.lf1.cuni.cz ip4:195.113.48.61 ip4:195.113.48.62 a:office2.cesnet.cz mx:is.cuni.cz include:spf.protection.outlook.com include:_spf.atlassian.net -all
Copied
Terms
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 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
ip4:
195.113.48.61 / 32
pass
if the sender's IP is between
195.113.48.61 and 195.113.48.61 (inclusive).
195.113.48.61 and 195.113.48.61 (inclusive).
CESNET z.s.p.o.
AS2852
or else
ip4:
195.113.48.62 / 32
pass
if the sender's IP is between
195.113.48.62 and 195.113.48.62 (inclusive).
195.113.48.62 and 195.113.48.62 (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
1 IPv6 address
or else
mx:
is.cuni.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
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
include:
_spf.atlassian.net
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
-all
fail
the email's SPF check.
Included records
v=spf1 a:dec52.lf1.cuni.cz a:out.lf1.cuni.cz ip4:195.113.48.61 ip4:195.113.48.62 a:office2.cesnet.cz mx:is.cuni.cz include:spf.protection.outlook.com include:_spf.atlassian.net -all
6 x ip4 5 x ip6 -all
IP ranges
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
