6 / 10
Lookups
0
Issues
594,260
IPv4 addresses
2.19 â‹… 10
24
IPv6 addresses
v=spf1 ip4:123.100.123.4 include:spf.securedsigning.com include:spf.protection.outlook.com include:servers.mcsv.net include:mail.zendesk.com include:40815767.spf06.hubspotemail.net include:_spf.psm.knowbe4.com -all
Copied
Terms
ip4:
123.100.123.4 / 32
pass
if the sender's IP is between
123.100.123.4 and 123.100.123.4 (inclusive).
123.100.123.4 and 123.100.123.4 (inclusive).
Two Degrees Mobile
AS9889
or else
include:
spf.securedsigning.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
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:
servers.mcsv.net
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
MailChimp
Email marketing
or else
include:
mail.zendesk.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Zendesk
Helpdesk
or else
include:
40815767.spf06.hubspotemail.net
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Hubspot
Email marketing
or else
include:
_spf.psm.knowbe4.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
KnowBe4
Security training
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:123.100.123.4 include:spf.securedsigning.com include:spf.protection.outlook.com include:servers.mcsv.net include:mail.zendesk.com include:40815767.spf06.hubspotemail.net include:_spf.psm.knowbe4.com -all
13 x ip4 -all
6 x ip4 5 x ip6 -all
3 x ip4 -all
5 x ip4 ~all
19 x ip4 -all
6 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
