3 / 10
Lookups
0
Issues
458,761
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 a mx ip4:64.20.236.18 include:spf.protection.outlook.com ~all
Copied
Terms
ip4:
209.188.18.133 / 32
pass
if the sender's IP is between
209.188.18.133 and 209.188.18.133 (inclusive).
209.188.18.133 and 209.188.18.133 (inclusive).
SECURED SERVERS
AS20454
or else
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
6 IPv4 addresses
or else
ip4:
64.20.236.18 / 32
pass
if the sender's IP is between
64.20.236.18 and 64.20.236.18 (inclusive).
64.20.236.18 and 64.20.236.18 (inclusive).
zColo
AS27325
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 ip4:209.188.18.133 a mx ip4:64.20.236.18 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