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Lookups
1
Issue
102,401
IPv4 addresses
2.83 ⋅ 10
22
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 mx a ptr ip4:216.55.96.0/20 include:_spf.google.com ~all
Copied
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
or else
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
1 IPv6 address
or else
ptr:
.
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
216.55.96.0 / 20
pass
if the sender's IP is between
216.55.96.0 and 216.55.111.255 (inclusive).
216.55.96.0 and 216.55.111.255 (inclusive).
PureVoltage Hosting
AS26548
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
~all
soft fail
the email's SPF check.
Included records
v=spf1 mx a ptr ip4:216.55.96.0/20 include:_spf.google.com ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable
2 x ip4 6 x ip6 ~all