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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
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:
185.16.39.234 / 32
pass
if the sender's IP is between
185.16.39.234 and 185.16.39.234 (inclusive).
185.16.39.234 and 185.16.39.234 (inclusive).
MEVSPACE sp. z o.o.
AS201814
or else
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
?all
Don't state if this IP is allowed to send this email.
Included records
v=spf1 mx a ptr ip4:185.16.39.234 a:mail.axtel.org ?all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable