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.
v=spf1 mx a:mail.bibliopolis.info ip4:213.205.84.184 ptr:bibliopolis.info -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
pass
if the sender's IP address is in the A or AAAA record of this domain.
1 IPv4 address
or else
ip4:
213.205.84.184 / 32
pass
if the sender's IP is between
213.205.84.184 and 213.205.84.184 (inclusive).
213.205.84.184 and 213.205.84.184 (inclusive).
NOS COMUNICACOES
AS1897
or else
ptr:
bibliopolis.info
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
-all
fail
the email's SPF check.
Included records
v=spf1 mx a:mail.bibliopolis.info ip4:213.205.84.184 ptr:bibliopolis.info -all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable