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Lookups
1
Issue
264
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 include:_spf.mailersend.net ip4:173.231.190.157/32 ip4:173.231.190.158/32 ip4:173.231.190.156/32 ip4:173.231.191.100/32 ip4:173.231.190.149/32 ip4:173.231.190.148/32 a mx ptr -all
Copied
Terms
include:
_spf.mailersend.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:
173.231.190.157 / 32
pass
if the sender's IP is between
173.231.190.157 and 173.231.190.157 (inclusive).
173.231.190.157 and 173.231.190.157 (inclusive).
Internap Holding
AS32475
or else
ip4:
173.231.190.158 / 32
pass
if the sender's IP is between
173.231.190.158 and 173.231.190.158 (inclusive).
173.231.190.158 and 173.231.190.158 (inclusive).
Internap Holding
AS32475
or else
ip4:
173.231.190.156 / 32
pass
if the sender's IP is between
173.231.190.156 and 173.231.190.156 (inclusive).
173.231.190.156 and 173.231.190.156 (inclusive).
Internap Holding
AS32475
or else
ip4:
173.231.191.100 / 32
pass
if the sender's IP is between
173.231.191.100 and 173.231.191.100 (inclusive).
173.231.191.100 and 173.231.191.100 (inclusive).
Internap Holding
AS32475
or else
ip4:
173.231.190.149 / 32
pass
if the sender's IP is between
173.231.190.149 and 173.231.190.149 (inclusive).
173.231.190.149 and 173.231.190.149 (inclusive).
Internap Holding
AS32475
or else
ip4:
173.231.190.148 / 32
pass
if the sender's IP is between
173.231.190.148 and 173.231.190.148 (inclusive).
173.231.190.148 and 173.231.190.148 (inclusive).
Internap Holding
AS32475
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
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
-all
fail
the email's SPF check.
Included records
v=spf1 include:_spf.mailersend.net ip4:173.231.190.157 ip4:173.231.190.158 ip4:173.231.190.156 ip4:173.231.191.100 ip4:173.231.190.149 ip4:173.231.190.148 a mx ptr -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
1 x ip4 ~all