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Lookups
1
Issue
6
IPv4 addresses
2
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 mx a ptr ip4:95.216.251.35 ip4:95.216.251.34 a:cp.intros.gr ~all
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Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
2 IPv6 addresses
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
95.216.251.35 / 32
pass
if the sender's IP is between
95.216.251.35 and 95.216.251.35 (inclusive).
95.216.251.35 and 95.216.251.35 (inclusive).
Hetzner Online
AS24940
or else
ip4:
95.216.251.34 / 32
pass
if the sender's IP is between
95.216.251.34 and 95.216.251.34 (inclusive).
95.216.251.34 and 95.216.251.34 (inclusive).
Hetzner Online
AS24940
or else
a:
cp.intros.gr
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 mx a ptr ip4:95.216.251.35 ip4:95.216.251.34 a:cp.intros.gr ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable