5 / 10
Lookups
0
Issues
459,367
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 +ip4:139.28.116.16 +ip4:139.28.116.20 +ip4:139.28.116.24 include:spf.protection.outlook.com include:spf.smartemailing.cz -all
Copied
Terms
ip4:
139.28.116.16 / 32
pass
if the sender's IP is between
139.28.116.16 and 139.28.116.16 (inclusive).
139.28.116.16 and 139.28.116.16 (inclusive).
DOBNET, z.s.
AS209621
or else
ip4:
139.28.116.20 / 32
pass
if the sender's IP is between
139.28.116.20 and 139.28.116.20 (inclusive).
139.28.116.20 and 139.28.116.20 (inclusive).
DOBNET, z.s.
AS209621
or else
ip4:
139.28.116.24 / 32
pass
if the sender's IP is between
139.28.116.24 and 139.28.116.24 (inclusive).
139.28.116.24 and 139.28.116.24 (inclusive).
DOBNET, z.s.
AS209621
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.smartemailing.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
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:139.28.116.16 ip4:139.28.116.20 ip4:139.28.116.24 include:spf.protection.outlook.com include:spf.smartemailing.cz -all
6 x ip4 5 x ip6 -all
11 x ip4 include:spf1.smartemailing.cz ~all
7 x ip4 3 x ip6 include:spf2.smartemailing.cz ~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