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Lookups
1
Issue
5
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
Terms
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
3 IPv4 addresses
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
ptr:
.
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
208.91.192.130 / 32
pass
if the sender's IP is between
208.91.192.130 and 208.91.192.130 (inclusive).
208.91.192.130 and 208.91.192.130 (inclusive).
Dauphin Telecom
AS33392
or else
~all
soft fail
the email's SPF check.
Included records
v=spf1 mx a ptr ip4:208.91.192.130 ~all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable