nordnet.com SPF record

3 / 10 Lookups
1 Issue
459,780 IPv4 addresses
2.19 ⋅ 10 24 IPv6 addresses

The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.

v=spf1 mx ptr ip4:194.51.85.0/24 ip4:194.206.126.0/24 ip4:195.146.235.0/24 ip4:195.146.237.0/24 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
ptr:
PTR checks should no longer be used. See RFC 7208, section 5.5 .
or else
ip4:
194.51.85.0 / 24
pass if the sender's IP is between
194.51.85.0 and 194.51.85.255 (inclusive).
NordNet SA
AS8362
or else
ip4:
194.206.126.0 / 24
pass if the sender's IP is between
194.206.126.0 and 194.206.126.255 (inclusive).
NordNet SA
AS8362
or else
ip4:
195.146.235.0 / 24
pass if the sender's IP is between
195.146.235.0 and 195.146.235.255 (inclusive).
NordNet SA
AS8362
or else
ip4:
195.146.237.0 / 24
pass if the sender's IP is between
195.146.237.0 and 195.146.237.255 (inclusive).
NordNet SA
AS8362
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 mx ptr ip4:194.51.85.0/24 ip4:194.206.126.0/24 ip4:195.146.235.0/24 ip4:195.146.237.0/24 include:spf.protection.outlook.com -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
6 x ip4 5 x ip6 -all

IP ranges

52.101.68.18
Microsoft
AS8075
52.101.73.19
Microsoft
AS8075
52.101.68.15
Microsoft
AS8075
52.101.73.24
Microsoft
AS8075
2a01:111:f403:ca09::8
Microsoft
AS8075
2a01:111:f403:ca09::2
Microsoft
AS8075
2a01:111:f403:ca04::1
Microsoft
AS8075
2a01:111:f403:ca09::6
Microsoft
AS8075
194.51.85.0 / 24
NordNet SA
AS8362
194.206.126.0 / 24
NordNet SA
AS8362
195.146.235.0 / 24
NordNet SA
AS8362
195.146.237.0 / 24
NordNet SA
AS8362
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