jon.cz SPF record

3 / 10 Lookups
0 Issues
475,138 IPv4 addresses
2.19 ⋅ 10 24 IPv6 addresses
v=spf1 a mx ip4:188.75.128.0/18 include:spf.protection.outlook.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.
1 IPv4 address
or else
ip4:
188.75.128.0 / 18
pass if the sender's IP is between
188.75.128.0 and 188.75.191.255 (inclusive).
JON.CZ s.r.o.
AS196735
or else
include:
spf.protection.outlook.com
Evaluate this SPF record and pass if it
passes.
Microsoft 365 / Outlook
Inbox software
or else
~all
soft fail the email's SPF check.

Included records

v=spf1 a mx ip4:188.75.128.0/18 include:spf.protection.outlook.com ~all
6 x ip4 5 x ip6 -all

IP ranges

188.75.128.90
JON.CZ s.r.o.
AS196735
188.75.128.70
JON.CZ s.r.o.
AS196735
188.75.128.0 / 18
JON.CZ s.r.o.
AS196735
40.92.0.0 / 15
Microsoft
AS8075
40.107.0.0 / 16
Microsoft
AS8075
52.100.0.0 / 15
Microsoft
AS8075
52.102.0.0 / 16
Microsoft
AS8075
52.103.0.0 / 17
Microsoft
AS8075
104.47.0.0 / 17
Microsoft
AS8075
2a01:111:f400:: / 48
Microsoft
AS8075
2a01:111:f403:: / 49
Microsoft
AS8075
2a01:111:f403:8000:: / 51
Microsoft
AS8075
2a01:111:f403:c000:: / 51
Microsoft
AS8075
2a01:111:f403:f000:: / 52
Microsoft
AS8075