1 / 10
Lookups
0
Issues
4,097
IPv4 addresses
0
IPv6 addresses
Terms
ip4:
81.17.128.0 / 20
pass
if the sender's IP is between
81.17.128.0 and 81.17.143.255 (inclusive).
81.17.128.0 and 81.17.143.255 (inclusive).
Aviti
AS21437
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
-all
fail
the email's SPF check.
Included records
v=spf1 ip4:81.17.128.0/20 mx -all