www.usmd.edu SPF record

2 / 10 Lookups
0 Issues
458,756 IPv4 addresses
2.19 ⋅ 10 24 IPv6 addresses
v=spf1 +ip4:52.152.139.135 +ip4:52.224.246.216 +ip4:20.163.173.59 +ip4:52.224.246.16 +mx include:spf.protection.outlook.com -all Copied

Terms

ip4:
52.152.139.135 / 32
pass if the sender's IP is between
52.152.139.135 and 52.152.139.135 (inclusive).
Microsoft
AS8075
or else
ip4:
52.224.246.216 / 32
pass if the sender's IP is between
52.224.246.216 and 52.224.246.216 (inclusive).
Microsoft
AS8075
or else
ip4:
20.163.173.59 / 32
pass if the sender's IP is between
20.163.173.59 and 20.163.173.59 (inclusive).
Microsoft
AS8075
or else
ip4:
52.224.246.16 / 32
pass if the sender's IP is between
52.224.246.16 and 52.224.246.16 (inclusive).
Microsoft
AS8075
or else
mx
pass if the sender's IP address is in the A or AAAA record of this domain.
or else
include:
spf.protection.outlook.com
Evaluate this SPF record and pass if it
passes.
Microsoft 365 / Outlook
Inbox software
or else
-all
fail the email's SPF check.

Included records

v=spf1 ip4:52.152.139.135 ip4:52.224.246.216 ip4:20.163.173.59 ip4:52.224.246.16 mx include:spf.protection.outlook.com -all
6 x ip4 5 x ip6 -all

IP ranges

52.152.139.135
Microsoft
AS8075
52.224.246.216
Microsoft
AS8075
20.163.173.59
Microsoft
AS8075
52.224.246.16
Microsoft
AS8075
40.92.0.0 / 15
Microsoft
AS8075
40.107.0.0 / 16
Microsoft
AS8075
52.100.0.0 / 15
Microsoft
AS8075
52.102.0.0 / 16
Microsoft
AS8075
52.103.0.0 / 17
Microsoft
AS8075
104.47.0.0 / 17
Microsoft
AS8075
2a01:111:f400:: / 48
Microsoft
AS8075
2a01:111:f403:: / 49
Microsoft
AS8075
2a01:111:f403:8000:: / 51
Microsoft
AS8075
2a01:111:f403:c000:: / 51
Microsoft
AS8075
2a01:111:f403:f000:: / 52
Microsoft
AS8075