3 / 10
Lookups
1
Issue
4
IPv4 addresses
0
IPv6 addresses
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable.
Terms
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
ip4:
209.221.62.27 / 32
pass
if the sender's IP is between
209.221.62.27 and 209.221.62.27 (inclusive).
209.221.62.27 and 209.221.62.27 (inclusive).
The Seimitsu
AS62844
or else
ip4:
209.221.63.13 / 32
pass
if the sender's IP is between
209.221.63.13 and 209.221.63.13 (inclusive).
209.221.63.13 and 209.221.63.13 (inclusive).
The Seimitsu
AS62844
or else
-all
fail
the email's SPF check.
Included records
v=spf1 a mx ptr ip4:209.221.62.27 ip4:209.221.63.13 -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable