worldstream.net SPF record

5 / 10 Lookups
1 Issue
458,758 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 a ptr ip4:93.190.136.1 ip4:93.190.136.4 ip4:93.190.136.12 ip4:185.21.63.8 a:worldstream.nl 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.
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
ptr:
PTR checks should no longer be used. See RFC 7208, section 5.5 .
or else
ip4:
93.190.136.1 / 32
pass if the sender's IP is between
93.190.136.1 and 93.190.136.1 (inclusive).
WorldStream
AS49981
or else
ip4:
93.190.136.4 / 32
pass if the sender's IP is between
93.190.136.4 and 93.190.136.4 (inclusive).
WorldStream
AS49981
or else
ip4:
93.190.136.12 / 32
pass if the sender's IP is between
93.190.136.12 and 93.190.136.12 (inclusive).
WorldStream
AS49981
or else
ip4:
185.21.63.8 / 32
pass if the sender's IP is between
185.21.63.8 and 185.21.63.8 (inclusive).
WorldStream
AS49981
or else
a:
worldstream.nl
pass if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
1 IPv6 address
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 a ptr ip4:93.190.136.1 ip4:93.190.136.4 ip4:93.190.136.12 ip4:185.21.63.8 a:worldstream.nl 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

185.21.63.36
WorldStream
AS49981
93.190.136.1
WorldStream
AS49981
93.190.136.4
WorldStream
AS49981
93.190.136.12
WorldStream
AS49981
185.21.63.8
WorldStream
AS49981
185.21.63.36
WorldStream
AS49981
2a00:7c80:f000::36
WorldStream
AS49981
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