2 / 10
Lookups
0
Issues
463,620
IPv4 addresses
7.92 ⋅ 10
28
IPv6 addresses
v=spf1 mx ip4:178.255.80.0/21 ip4:199.66.200.0/21 ip4:91.212.12.0/24 ip4:91.199.212.0/24 ip4:91.209.196.0/24 ip6:2a02:1788::/32 include:spf.protection.outlook.com -all
Copied
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
4 IPv4 addresses
4 IPv6 addresses
or else
ip4:
178.255.80.0 / 21
pass
if the sender's IP is between
178.255.80.0 and 178.255.87.255 (inclusive).
178.255.80.0 and 178.255.87.255 (inclusive).
CCANET
AS35838
or else
ip4:
199.66.200.0 / 21
pass
if the sender's IP is between
199.66.200.0 and 199.66.207.255 (inclusive).
199.66.200.0 and 199.66.207.255 (inclusive).
NuCDN
AS23393
or else
ip4:
91.212.12.0 / 24
pass
if the sender's IP is between
91.212.12.0 and 91.212.12.255 (inclusive).
91.212.12.0 and 91.212.12.255 (inclusive).
Sectigo
AS48447
or else
ip4:
91.199.212.0 / 24
pass
if the sender's IP is between
91.199.212.0 and 91.199.212.255 (inclusive).
91.199.212.0 and 91.199.212.255 (inclusive).
Sectigo
AS48447
or else
ip4:
91.209.196.0 / 24
pass
if the sender's IP is between
91.209.196.0 and 91.209.196.255 (inclusive).
91.209.196.0 and 91.209.196.255 (inclusive).
Sectigo
AS48447
or else
ip6:
2a02:1788:: / 32
pass
if the sender's IP is between
2a02:1788:: and 2a02:1788:ffff:ffff:ffff:ffff:ffff:ffff (inclusive).
2a02:1788:: and 2a02:1788:ffff:ffff:ffff:ffff:ffff:ffff (inclusive).
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 mx ip4:178.255.80.0/21 ip4:199.66.200.0/21 ip4:91.212.12.0/24 ip4:91.199.212.0/24 ip4:91.209.196.0/24 ip6:2a02:1788::/32 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