mahdtx.org SPF record

3 / 10 Lookups
0 Issues
458,760 IPv4 addresses
2.19 ⋅ 10 24 IPv6 addresses
v=spf1 ip4:209.188.18.133 a mx ip4:64.20.236.18 include:spf.protection.outlook.com ~all Copied

Terms

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).
zColo
AS27325
or else
include:
spf.protection.outlook.com
Evaluate this SPF record and pass if it
passes.
Microsoft 365 / Outlook
Inbox software
or else
~all
soft fail the email's SPF check.

Included records

v=spf1 a mx ip4:64.20.236.18 include:spf.protection.outlook.com ~all
6 x ip4 5 x ip6 -all

IP ranges

66.252.219.70
Five Area Systems
AS29843
209.222.82.252
Amazon.com
AS16509
209.222.82.253
Amazon.com
AS16509
209.222.82.255
Amazon.com
AS16509
209.222.82.252
Amazon.com
AS16509
209.222.82.253
Amazon.com
AS16509
209.222.82.255
Amazon.com
AS16509
64.20.236.18
zColo
AS27325
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