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Lookups
1
Issue
102,959
IPv4 addresses
2.97 â‹… 10
28
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 a mx ptr ip4:174.129.182.182 ptr:emailout1.namecheap.com ptr:mailfoundry4.namecheaphosting.com include:_spf.google.com include:spf.mandrillapp.com include:docebosaas.com ~all
Copied
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
5 IPv4 addresses
5 IPv6 addresses
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
174.129.182.182 / 32
pass
if the sender's IP is between
174.129.182.182 and 174.129.182.182 (inclusive).
174.129.182.182 and 174.129.182.182 (inclusive).
Amazon.com
AS14618
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
include:
_spf.google.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Gmail
Inbox software
or else
include:
spf.mandrillapp.com
Evaluate this SPF record and
pass
if it
passes.
This include does nothing if the included record returns fail, soft fail, or neutral.
Mandrill
Email automation
or else
include:
docebosaas.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
soft fail
the email's SPF check.
Included records
v=spf1 a mx ptr ip4:174.129.182.182 ptr:emailout1.namecheap.com ptr:mailfoundry4.namecheaphosting.com include:_spf.google.com include:spf.mandrillapp.com include:docebosaas.com ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable