9 / 10
Lookups
0
Issues
589,111
IPv4 addresses
3.47 â‹… 10
28
IPv6 addresses
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
include:
centralnic.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.
Included records
v=spf1 a include:centralnic.com -all
include:spf1.centralnic.com include:_spf.google.com include:emsd1.com include:spf.protection.outlook.com include:mail.zendesk.com include:_spf.smtp.mailtrap.live -all
20 x ip4 include:spf2.centralnic.com -all
16 x ip4 2 x ip6 -all
2 x ip4 6 x ip6 ~all
5 x ip4 ~all
6 x ip4 5 x ip6 -all
5 x ip4 ~all
7 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