spf.protection.office365.us SPF record

0 / 10 Lookups
0 Issues
1,280 IPv4 addresses
3.32 ⋅ 10 20 IPv6 addresses
v=spf1 ip4:23.103.199.0/24 ip4:23.103.205.0/24 ip4:23.103.206.0/24 ip4:23.103.208.0/23 ip6:2001:489a:2202::/61 ip6:2001:489a:2202:8::/61 ip6:2001:489a:2202:2000::/63 -all Copied

Terms

ip4:
23.103.199.0 / 24
pass if the sender's IP is between
23.103.199.0 and 23.103.199.255 (inclusive).
Microsoft
AS8075
or else
ip4:
23.103.205.0 / 24
pass if the sender's IP is between
23.103.205.0 and 23.103.205.255 (inclusive).
Microsoft
AS8075
or else
ip4:
23.103.206.0 / 24
pass if the sender's IP is between
23.103.206.0 and 23.103.206.255 (inclusive).
Microsoft
AS8075
or else
ip4:
23.103.208.0 / 23
pass if the sender's IP is between
23.103.208.0 and 23.103.209.255 (inclusive).
Microsoft
AS8075
or else
ip6:
2001:489a:2202:: / 61
pass if the sender's IP is between
2001:489a:2202:: and 2001:489a:2202:7:ffff:ffff:ffff:ffff (inclusive).
Microsoft
AS8070
or else
ip6:
2001:489a:2202:8:: / 61
pass if the sender's IP is between
2001:489a:2202:8:: and 2001:489a:2202:f:ffff:ffff:ffff:ffff (inclusive).
Microsoft
AS8070
or else
ip6:
2001:489a:2202:2000:: / 63
pass if the sender's IP is between
2001:489a:2202:2000:: and 2001:489a:2202:2001:ffff:ffff:ffff:ffff (inclusive).
Microsoft
AS8070
or else
-all
fail the email's SPF check.

Included records

v=spf1 ip4:23.103.199.0/24 ip4:23.103.205.0/24 ip4:23.103.206.0/24 ip4:23.103.208.0/23 ip6:2001:489a:2202::/61 ip6:2001:489a:2202:8::/61 ip6:2001:489a:2202:2000::/63 -all

IP ranges

23.103.199.0 / 24
Microsoft
AS8075
23.103.205.0 / 24
Microsoft
AS8075
23.103.206.0 / 24
Microsoft
AS8075
23.103.208.0 / 23
Microsoft
AS8075
2001:489a:2202:: / 61
Microsoft
AS8070
2001:489a:2202:8:: / 61
Microsoft
AS8070
2001:489a:2202:2000:: / 63
Microsoft
AS8070