20 / 10
Lookups
1
Issue
1,543,900
IPv4 addresses
7.78 â‹… 10
24
IPv6 addresses
More than 10 DNS lookups were required to process this SPF record.
v=spf1 a mx include:spf.protection.outlook.com include:schalk-it.de include:supplyon.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.
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:
schalk-it.de
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:
supplyon.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 mx include:spf.protection.outlook.com include:schalk-it.de include:supplyon.com -all
More than 10 DNS lookups were required to process this SPF record
6 x ip4 5 x ip6 -all
mx a a:mail.domain-robot.org 74 x ip4 3 x ip6 include:spf.protection.outlook.com include:spf.ess.de.barracudanetworks.com -all
6 x ip4 5 x ip6 -all
3 x ip4 -all
include:_spf.pool1.transactional-mail-a.com include:_spf.pool2.transactional-mail-a.com include:_spf.retarus.com include:_spf-ssg-a.microsoft.com include:_spf.atlassian.net 4 x ip4 include:supplyon.schalk-it.de include:_spf.rexx-suite.com -all
1 x ip4 ~all
1 x ip4 ~all
10 x ip4 ~all
include:spf.protection.outlook.com 5 x ip4 ~all
6 x ip4 5 x ip6 -all
16 x ip4 -all
a:mx01.rexx-systems.de 8 x ip4 1 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
2a01:111: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
2a01:111: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
2001:67c:2050::
/ 48
Heinlein-Support
AS199118
2001:67c:2050::
2001:67c:2050:ffff:ffff:ffff:ffff:ffff