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Lookups
1
Issue
461,440
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
'all' should be the last mechanism (any other mechanism will be ignored).
v=spf1 include:spf.protection.outlook.com include:marketing.dynamics.com -all include:nam.pb-dynmktg.com
Copied
Terms
include:
spf.protection.outlook.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Microsoft 365 / Outlook
Inbox software
or else
include:
marketing.dynamics.com
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
-all
fail
the email's SPF check.
or else
include:
nam.pb-dynmktg.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Included records
v=spf1 include:spf.protection.outlook.com include:marketing.dynamics.com -all include:nam.pb-dynmktg.com
'all' should be the last mechanism (any other mechanism will be ignored)
6 x ip4 5 x ip6 -all
14 x ip4 ~all
2 x ip4 ~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