12 / 10
Lookups
2
Issues
272,832
IPv4 addresses
1.42 ⋅ 10
22
IPv6 addresses
There are 2 issues with this SPF record
- More than 10 DNS lookups were required to process this SPF record.
- The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 include:_spf.frontier.com include:_spf.mail.yahoo.com include:sendgrid.net include:mktomail.com include:icpbounce.com include:spf-0019f703.pphosted.com include:_netblocks.act-on.net ip4:44.238.97.35 ~all
Copied
Terms
include:
_spf.frontier.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.mail.yahoo.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:
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
include:
mktomail.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Marketo
Marketing automation
or else
include:
icpbounce.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-0019f703.pphosted.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:
_netblocks.act-on.net
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:
44.238.97.35 / 32
pass
if the sender's IP is between
44.238.97.35 and 44.238.97.35 (inclusive).
44.238.97.35 and 44.238.97.35 (inclusive).
Amazon.com
AS16509
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 include:_spf.frontier.com include:_spf.mail.yahoo.com include:sendgrid.net include:mktomail.com include:icpbounce.com include:spf-0019f703.pphosted.com include:_netblocks.act-on.net ip4:44.238.97.35 ~all
More than 10 DNS lookups were required to process this SPF record
15 x ip4 3 x ip6 ~all
1 x ip4 ptr:yahoo.com ptr:yahoo.net ?all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
12 x ip4 ~all
14 x ip4 a mx -all
2 x ip4
10 x ip4 -all
IP ranges
2001:1960:20:6000::
/ 56
Verizon Business
AS5650
2001:1960:20:6000::
2001:1960:20:60ff:ffff:ffff:ffff:ffff
2001:1960:20:1000::
/ 56
Verizon Business
AS5650
2001:1960:20:1000::
2001:1960:20:10ff:ffff:ffff:ffff:ffff
72.46.76.0
/ 22
Equinix (EMEA) Acquisition Enterprises
AS15830
72.46.76.0 - 72.46.79.255
1,024 IP addresses
204.156.176.0
/ 23
Equinix (EMEA) Acquisition Enterprises
AS15830
204.156.176.0 - 204.156.177.255
512 IP addresses
209.222.65.0
/ 24
Equinix (EMEA) Acquisition Enterprises
AS15830
209.222.65.0 - 209.222.65.255
256 IP addresses
209.222.66.0
/ 23
Equinix (EMEA) Acquisition Enterprises
AS15830
209.222.66.0 - 209.222.67.255
512 IP addresses
209.162.194.0
/ 24
Northeast Missouri Rural Telephone
AS394778
209.162.194.0 - 209.162.194.255
256 IP addresses
216.41.143.0
/ 24
Equinix (EMEA) Acquisition Enterprises
AS15830
216.41.143.0 - 216.41.143.255
256 IP addresses