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Lookups
1
Issue
259
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
v=spf1 mx a ptr ip4:198.187.206.0/24 ip4:52.24.64.243 ?all
Copied
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.
1 IPv4 address
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
198.187.206.0 / 24
pass
if the sender's IP is between
198.187.206.0 and 198.187.206.255 (inclusive).
198.187.206.0 and 198.187.206.255 (inclusive).
Unitas Global
AS1828
or else
ip4:
52.24.64.243 / 32
pass
if the sender's IP is between
52.24.64.243 and 52.24.64.243 (inclusive).
52.24.64.243 and 52.24.64.243 (inclusive).
Amazon.com
AS16509
or else
?all
Don't state if this IP is allowed to send this email.
Included records
v=spf1 mx a ptr ip4:198.187.206.0/24 ip4:52.24.64.243 ?all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable