1 / 10
Lookups
0
Issues
459,025
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
Terms
ip4:
139.138.32.25 / 32
pass
if the sender's IP is between
139.138.32.25 and 139.138.32.25 (inclusive).
139.138.32.25 and 139.138.32.25 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
139.138.32.28 / 31
pass
if the sender's IP is between
139.138.32.28 and 139.138.32.29 (inclusive).
139.138.32.28 and 139.138.32.29 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
155.97.144.0 / 24
pass
if the sender's IP is between
155.97.144.0 and 155.97.144.255 (inclusive).
155.97.144.0 and 155.97.144.255 (inclusive).
University of Utah
AS17055
or else
ip4:
216.71.138.66 / 32
pass
if the sender's IP is between
216.71.138.66 and 216.71.138.66 (inclusive).
216.71.138.66 and 216.71.138.66 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
216.71.138.115 / 32
pass
if the sender's IP is between
216.71.138.115 and 216.71.138.115 (inclusive).
216.71.138.115 and 216.71.138.115 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
216.71.138.116 / 31
pass
if the sender's IP is between
216.71.138.116 and 216.71.138.117 (inclusive).
216.71.138.116 and 216.71.138.117 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
216.71.141.220 / 30
pass
if the sender's IP is between
216.71.141.220 and 216.71.141.223 (inclusive).
216.71.141.220 and 216.71.141.223 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
216.71.141.224 / 32
pass
if the sender's IP is between
216.71.141.224 and 216.71.141.224 (inclusive).
216.71.141.224 and 216.71.141.224 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
216.71.142.89 / 32
pass
if the sender's IP is between
216.71.142.89 and 216.71.142.89 (inclusive).
216.71.142.89 and 216.71.142.89 (inclusive).
Cisco Systems Ironport Division
AS16417
or else
ip4:
216.71.145.20 / 30
pass
if the sender's IP is between
216.71.145.20 and 216.71.145.23 (inclusive).
216.71.145.20 and 216.71.145.23 (inclusive).
Cisco Systems Ironport Division
AS16417
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
~all
soft fail
the email's SPF check.
Included records
v=spf1 ip4:139.138.32.25 ip4:139.138.32.28/31 ip4:155.97.144.0/24 ip4:216.71.138.66 ip4:216.71.138.115 ip4:216.71.138.116/31 ip4:216.71.141.220/30 ip4:216.71.141.224 ip4:216.71.142.89 ip4:216.71.145.20/30 include:spf.protection.outlook.com ~all
6 x ip4 5 x ip6 -all
IP ranges
139.138.32.28
/ 31
Cisco Systems Ironport Division
AS16417
139.138.32.28 - 139.138.32.29
2 IP addresses
216.71.138.116
/ 31
Cisco Systems Ironport Division
AS16417
216.71.138.116 - 216.71.138.117
2 IP addresses
216.71.141.220
/ 30
Cisco Systems Ironport Division
AS16417
216.71.141.220 - 216.71.141.223
4 IP addresses
216.71.145.20
/ 30
Cisco Systems Ironport Division
AS16417
216.71.145.20 - 216.71.145.23
4 IP addresses
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