2 / 10
Lookups
0
Issues
70
IPv4 addresses
0
IPv6 addresses
Terms
a
pass
if the sender's IP address is in the A or AAAA record of this domain.
2 IPv4 addresses
or else
mx
pass
if the sender's IP address is in the A or AAAA record of this domain.
4 IPv4 addresses
or else
ip4:
156.17.52.128 / 26
pass
if the sender's IP is between
156.17.52.128 and 156.17.52.191 (inclusive).
156.17.52.128 and 156.17.52.191 (inclusive).
Wroclaw Centre of Networking and Supercomputing
AS8970
or else
-all
fail
the email's SPF check.
Included records
v=spf1 a mx ip4:156.17.52.128/26 -all
IP ranges
156.17.52.128
/ 26
Wroclaw Centre of Networking and Supercomputing
AS8970
156.17.52.128 - 156.17.52.191
64 IP addresses