12 / 10
Lookups
1
Issue
597,733
IPv4 addresses
2.19 â‹… 10
24
IPv6 addresses
More than 10 DNS lookups were required to process this SPF record.
v=spf1 mx a include:mailgun.org include:eu._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:amazonses.com -all
Copied
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
12 IPv4 addresses
or else
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
include:
mailgun.org
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
MailGun
Email automation
or else
include:
eu._netblocks.mimecast.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.salesforce.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Salesforce
CRM
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:
amazonses.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Amazon SES
Email automation
or else
-all
fail
the email's SPF check.
Included records
v=spf1 mx a include:mailgun.org include:eu._netblocks.mimecast.com include:_spf.salesforce.com include:spf.protection.outlook.com include:amazonses.com -all
More than 10 DNS lookups were required to process this SPF record
include:_spf.mailgun.org include:_spf.eu.mailgun.org -all
include:_spf1.mailgun.org include:_spf2.mailgun.org ~all
10 x ip4 ~all
9 x ip4 ~all
11 x ip4 ~all
11 x ip4 ~all
exists:%{i}._spf.mta.salesforce.com -all
6 x ip4 5 x ip6 -all
12 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