3 / 10
Lookups
1
Issue
3
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.
1 IPv4 address
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
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
ip4:
85.13.222.186 / 32
pass
if the sender's IP is between
85.13.222.186 and 85.13.222.186 (inclusive).
85.13.222.186 and 85.13.222.186 (inclusive).
Coreix
AS31708
Included records
v=spf1 mx ptr a ip4:85.13.222.186
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable