5 / 10
Lookups
0
Issues
470,519
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 ip4:173.37.147.224/27 ip4:173.37.142.64/26 ip4:173.38.212.128/27 ip4:173.38.203.0/24 ip4:72.163.7.160/27 ip4:72.163.197.0/24 ip4:66.187.208.0/20 ip4:173.37.86.0/24 include:spf.protection.outlook.com include:spfb._spf.cisco.com ~all
Copied
Terms
ip4:
173.37.147.224 / 27
pass
if the sender's IP is between
173.37.147.224 and 173.37.147.255 (inclusive).
173.37.147.224 and 173.37.147.255 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
173.37.142.64 / 26
pass
if the sender's IP is between
173.37.142.64 and 173.37.142.127 (inclusive).
173.37.142.64 and 173.37.142.127 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
173.38.212.128 / 27
pass
if the sender's IP is between
173.38.212.128 and 173.38.212.159 (inclusive).
173.38.212.128 and 173.38.212.159 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
173.38.203.0 / 24
pass
if the sender's IP is between
173.38.203.0 and 173.38.203.255 (inclusive).
173.38.203.0 and 173.38.203.255 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
72.163.7.160 / 27
pass
if the sender's IP is between
72.163.7.160 and 72.163.7.191 (inclusive).
72.163.7.160 and 72.163.7.191 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
72.163.197.0 / 24
pass
if the sender's IP is between
72.163.197.0 and 72.163.197.255 (inclusive).
72.163.197.0 and 72.163.197.255 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
66.187.208.0 / 20
pass
if the sender's IP is between
66.187.208.0 and 66.187.223.255 (inclusive).
66.187.208.0 and 66.187.223.255 (inclusive).
CISCO SYSTEMS
AS109
or else
ip4:
173.37.86.0 / 24
pass
if the sender's IP is between
173.37.86.0 and 173.37.86.255 (inclusive).
173.37.86.0 and 173.37.86.255 (inclusive).
CISCO SYSTEMS
AS109
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:
spfb._spf.cisco.com
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
soft fail
the email's SPF check.
Included records
v=spf1 ip4:173.37.147.224/27 ip4:173.37.142.64/26 ip4:173.38.212.128/27 ip4:173.38.203.0/24 ip4:72.163.7.160/27 ip4:72.163.197.0/24 ip4:66.187.208.0/20 ip4:173.37.86.0/24 include:spf.protection.outlook.com include:spfb._spf.cisco.com ~all
6 x ip4 5 x ip6 -all
9 x ip4 include:spfc._spf.cisco.com ~all
3 x ip4 mx:res.cisco.com mx:sco.cisco.com ~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
184.94.240.0
/ 20
Cisco Systems Ironport Division
AS16417
184.94.240.0 - 184.94.255.255
4,096 IP addresses
208.90.56.0
/ 21
Cisco Systems Ironport Division
AS16417
208.90.56.0 - 208.90.63.255
2,048 IP addresses