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1
Issue
98,305
IPv4 addresses
2.97 ⋅ 10
28
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 ptr a:gty001.enlivensoftware.com a:development.enlivensoftware.com include:_spf.google.com mx -all
Copied
Terms
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
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
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
or else
-all
fail
the email's SPF check.
Included records
v=spf1 ptr a:gty001.enlivensoftware.com a:development.enlivensoftware.com include:_spf.google.com mx -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