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Lookups
1
Issue
2,177
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 ptr ip4:195.184.4.0/24 ip4:193.91.76.0/25 ip4:77.221.32.0/22 ip4:77.221.43.0/24 ip4:77.221.52.0/23 ~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
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
195.184.4.0 / 24
pass
if the sender's IP is between
195.184.4.0 and 195.184.4.255 (inclusive).
195.184.4.0 and 195.184.4.255 (inclusive).
Microsystem-Kecskemet Kft
AS197889
or else
ip4:
193.91.76.0 / 25
pass
if the sender's IP is between
193.91.76.0 and 193.91.76.127 (inclusive).
193.91.76.0 and 193.91.76.127 (inclusive).
Invitech ICT Services Kft.
AS12301
or else
ip4:
77.221.32.0 / 22
pass
if the sender's IP is between
77.221.32.0 and 77.221.35.255 (inclusive).
77.221.32.0 and 77.221.35.255 (inclusive).
Microsystem-Kecskemet Kft
AS197889
or else
ip4:
77.221.43.0 / 24
pass
if the sender's IP is between
77.221.43.0 and 77.221.43.255 (inclusive).
77.221.43.0 and 77.221.43.255 (inclusive).
Microsystem-Kecskemet Kft
AS197889
or else
ip4:
77.221.52.0 / 23
pass
if the sender's IP is between
77.221.52.0 and 77.221.53.255 (inclusive).
77.221.52.0 and 77.221.53.255 (inclusive).
Microsystem-Kecskemet Kft
AS197889
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 a ptr ip4:195.184.4.0/24 ip4:193.91.76.0/25 ip4:77.221.32.0/22 ip4:77.221.43.0/24 ip4:77.221.52.0/23 ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable