1 / 10
Lookups
0
Issues
458,754
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 ip4:210.176.166.232 ip4:4.192.77.21 include:spf.protection.outlook.com -all
Copied
Terms
ip4:
210.176.166.232 / 32
pass
if the sender's IP is between
210.176.166.232 and 210.176.166.232 (inclusive).
210.176.166.232 and 210.176.166.232 (inclusive).
PCCW IMS Ltd (PCCW Business Internet Access)
AS4515
or else
ip4:
4.192.77.21 / 32
pass
if the sender's IP is between
4.192.77.21 and 4.192.77.21 (inclusive).
4.192.77.21 and 4.192.77.21 (inclusive).
Microsoft
AS8075
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
fail
the email's SPF check.
Included records
v=spf1 ip4:210.176.166.232 ip4:4.192.77.21 include:spf.protection.outlook.com -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