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Lookups
1
Issue
10
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
Terms
ip4:
81.219.55.200 / 29
pass
if the sender's IP is between
81.219.55.200 and 81.219.55.207 (inclusive).
81.219.55.200 and 81.219.55.207 (inclusive).
Netia SA
AS12741
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
soft fail
the email's SPF check.
Included records
v=spf1 ip4:81.219.55.200/29 a mx ptr ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable