spftmems.itsc.cuhk.edu.hk SPF record

0 / 10 Lookups
0 Issues
320 IPv4 addresses
0 IPv6 addresses
v=spf1 ip4:18.188.239.128/26 ip4:18.188.9.192/26 ip4:18.208.22.128/25 ip4:18.208.22.64/26 -all Copied

Terms

ip4:
18.188.239.128 / 26
pass if the sender's IP is between
18.188.239.128 and 18.188.239.191 (inclusive).
Amazon.com
AS16509
or else
ip4:
18.188.9.192 / 26
pass if the sender's IP is between
18.188.9.192 and 18.188.9.255 (inclusive).
Amazon.com
AS16509
or else
ip4:
18.208.22.128 / 25
pass if the sender's IP is between
18.208.22.128 and 18.208.22.255 (inclusive).
Amazon.com
AS14618
or else
ip4:
18.208.22.64 / 26
pass if the sender's IP is between
18.208.22.64 and 18.208.22.127 (inclusive).
Amazon.com
AS14618
or else
-all
fail the email's SPF check.

Included records

v=spf1 ip4:18.188.239.128/26 ip4:18.188.9.192/26 ip4:18.208.22.128/25 ip4:18.208.22.64/26 -all

IP ranges

18.188.239.128 / 26
Amazon.com
AS16509
18.188.9.192 / 26
Amazon.com
AS16509
18.208.22.128 / 25
Amazon.com
AS14618
18.208.22.64 / 26
Amazon.com
AS14618