4 / 10
Lookups
0
Issues
458,870
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
Terms
include:
spf.seofr.uk
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
or else
-all
fail
the email's SPF check.
Included records
v=spf1 include:spf.seofr.uk mx -all
include:spf.protection.outlook.com 7 x ip4 2 x ip6 mx -all
6 x ip4 5 x ip6 -all
IP ranges
2a01:111:f403:8000::
/ 51
Microsoft
AS8075
2a01:111:f403:8000::
2a01:111:f403:9fff:ffff:ffff:ffff:ffff
2a01:111:f403:c000::
/ 51
Microsoft
AS8075
2a01:111:f403:c000::
2a01:111:f403:dfff:ffff:ffff:ffff:ffff
2a01:111:f403:f000::
/ 52
Microsoft
AS8075
2a01:111:f403:f000::
2a01:111:f403:ffff:ffff:ffff:ffff:ffff
2a01:a500:3641:101::
/ 64
UK Dedicated Servers
AS42831
2a01:a500:3641:101::
2a01:a500:3641:101:ffff:ffff:ffff:ffff
2a01:a500:3641:102::
/ 64
UK Dedicated Servers
AS42831
2a01:a500:3641:102::
2a01:a500:3641:102:ffff:ffff:ffff:ffff