9 / 10
Lookups
0
Issues
696,557
IPv4 addresses
2.19 ⋅ 10
24
IPv6 addresses
v=spf1 ip4:5.39.49.228 include:_mailer.602.cz ip4:86.49.88.0/25 include:spf.protection.outlook.com ip4:51.75.215.33 include:spf.smartemailing.cz include:spf.postal.602.cz include:sendgrid.net ip4:50.31.53.49 -all
Copied
Terms
ip4:
5.39.49.228 / 32
pass
if the sender's IP is between
5.39.49.228 and 5.39.49.228 (inclusive).
5.39.49.228 and 5.39.49.228 (inclusive).
OVH
AS16276
or else
include:
_mailer.602.cz
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
ip4:
86.49.88.0 / 25
pass
if the sender's IP is between
86.49.88.0 and 86.49.88.127 (inclusive).
86.49.88.0 and 86.49.88.127 (inclusive).
Vodafone Czech Republic a.s.
AS16019
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
ip4:
51.75.215.33 / 32
pass
if the sender's IP is between
51.75.215.33 and 51.75.215.33 (inclusive).
51.75.215.33 and 51.75.215.33 (inclusive).
OVH
AS16276
or else
include:
spf.smartemailing.cz
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.postal.602.cz
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:
sendgrid.net
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
SendGrid
Email automation
or else
ip4:
50.31.53.49 / 32
pass
if the sender's IP is between
50.31.53.49 and 50.31.53.49 (inclusive).
50.31.53.49 and 50.31.53.49 (inclusive).
SendGrid
AS11377
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:5.39.49.228 include:_mailer.602.cz ip4:86.49.88.0/25 include:spf.protection.outlook.com ip4:51.75.215.33 include:spf.smartemailing.cz include:spf.postal.602.cz include:sendgrid.net ip4:50.31.53.49 -all
5 x ip4 4 x ip6 -all
6 x ip4 5 x ip6 -all
11 x ip4 include:spf1.smartemailing.cz ~all
7 x ip4 3 x ip6 include:spf2.smartemailing.cz ~all
1 x ip4 ~all
IP ranges
Hurricane Electric
AS6939
2001:470:94f2:baba::
2001:470:94f2:baba: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
