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 a mx ptr ip4:94.127.4.36/32 ip4:217.26.214.184/32 ?all
Copied
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.
or else
PTR checks should no longer be used. See
RFC 7208, section 5.5
.
or else
ip4:
94.127.4.36 / 32
pass
if the sender's IP is between
94.127.4.36 and 94.127.4.36 (inclusive).
94.127.4.36 and 94.127.4.36 (inclusive).
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
or else
ip4:
217.26.214.184 / 32
pass
if the sender's IP is between
217.26.214.184 and 217.26.214.184 (inclusive).
217.26.214.184 and 217.26.214.184 (inclusive).
Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS31042
or else
?all
Don't state if this IP is allowed to send this email.
Included records
v=spf1 a mx ptr ip4:94.127.4.36 ip4:217.26.214.184 ?all
The 'ptr' mechanism shouldn't be used because it's slow, resource intensive, and not very reliable