3 / 10
Lookups
0
Issues
458,949
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 include:spf.ffdev.cz include:spf-cls.ffdev.cz include:spf.protection.outlook.com ip4:212.20.107.80/28 -all
Copied
Terms
include:
spf.ffdev.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-cls.ffdev.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
ip4:
212.20.107.80 / 28
pass
if the sender's IP is between
212.20.107.80 and 212.20.107.95 (inclusive).
212.20.107.80 and 212.20.107.95 (inclusive).
Quantcom, a.s.
AS29208
or else
-all
fail
the email's SPF check.
Included records
v=spf1 include:spf.ffdev.cz include:spf-cls.ffdev.cz include:spf.protection.outlook.com ip4:212.20.107.80/28 -all
5 x ip4 2 x ip6 -all
5 x ip4 -all
6 x ip4 5 x ip6 -all
IP ranges
Quantcom, a.s.
AS29208
2001:4de8:b0ba:ff39::
2001:4de8:b0ba:ff39: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