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Lookups
1
Issue
7
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 a mx ptr ip4:91.83.64.2 ip4:91.83.64.4 ip4:91.83.64.15 ip4:91.83.64.17 a:srv1.netsurfclub.hu ~all
Copied
Terms
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:
.
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
91.83.64.2 / 32
pass
if the sender's IP is between
91.83.64.2 and 91.83.64.2 (inclusive).
91.83.64.2 and 91.83.64.2 (inclusive).
Invitech
AS12301
or else
ip4:
91.83.64.4 / 32
pass
if the sender's IP is between
91.83.64.4 and 91.83.64.4 (inclusive).
91.83.64.4 and 91.83.64.4 (inclusive).
Invitech
AS12301
or else
ip4:
91.83.64.15 / 32
pass
if the sender's IP is between
91.83.64.15 and 91.83.64.15 (inclusive).
91.83.64.15 and 91.83.64.15 (inclusive).
Invitech
AS12301
or else
ip4:
91.83.64.17 / 32
pass
if the sender's IP is between
91.83.64.17 and 91.83.64.17 (inclusive).
91.83.64.17 and 91.83.64.17 (inclusive).
Invitech
AS12301
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 a mx ptr ip4:91.83.64.2 ip4:91.83.64.4 ip4:91.83.64.15 ip4:91.83.64.17 a:srv1.netsurfclub.hu ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable