_spf.duocast.net SPF record

0 / 10 Lookups
0 Issues
19,456 IPv4 addresses
7.92 ⋅ 10 28 IPv6 addresses
v=spf1 ip4:83.137.144.0/21 ip4:89.188.0.0/19 ip4:89.200.200.0/21 ip4:193.138.248.0/22 ip6:2a01:1b0::/32 ip4:87.238.168.0/21 ip4:93.184.96.0/20 ip6:2001:67c:6b8::/48 ?all Copied

Terms

ip4:
83.137.144.0 / 21
pass if the sender's IP is between
83.137.144.0 and 83.137.151.255 (inclusive).
Duocast
AS31477
or else
ip4:
89.188.0.0 / 19
pass if the sender's IP is between
89.188.0.0 and 89.188.31.255 (inclusive).
Duocast
AS31477
or else
ip4:
89.200.200.0 / 21
pass if the sender's IP is between
89.200.200.0 and 89.200.207.255 (inclusive).
Duocast
AS31477
or else
ip4:
193.138.248.0 / 22
pass if the sender's IP is between
193.138.248.0 and 193.138.251.255 (inclusive).
Duocast
AS31477
or else
ip6:
2a01:1b0:: / 32
pass if the sender's IP is between
2a01:1b0:: and 2a01:1b0:ffff:ffff:ffff:ffff:ffff:ffff (inclusive).
Duocast
AS31477
or else
ip4:
87.238.168.0 / 21
pass if the sender's IP is between
87.238.168.0 and 87.238.175.255 (inclusive).
Duocast
AS31477
or else
ip4:
93.184.96.0 / 20
pass if the sender's IP is between
93.184.96.0 and 93.184.111.255 (inclusive).
Duocast
AS31477
or else
ip6:
2001:67c:6b8:: / 48
pass if the sender's IP is between
2001:67c:6b8:: and 2001:67c:6b8:ffff:ffff:ffff:ffff:ffff (inclusive).
Duocast
AS31477
or else
?all
Don't state if this IP is allowed to send this email.

Included records

v=spf1 ip4:83.137.144.0/21 ip4:89.188.0.0/19 ip4:89.200.200.0/21 ip4:193.138.248.0/22 ip6:2a01:1b0::/32 ip4:87.238.168.0/21 ip4:93.184.96.0/20 ip6:2001:67c:6b8::/48 ?all

IP ranges

83.137.144.0 / 21
Duocast
AS31477
89.188.0.0 / 19
Duocast
AS31477
89.200.200.0 / 21
Duocast
AS31477
193.138.248.0 / 22
Duocast
AS31477
2a01:1b0:: / 32
Duocast
AS31477
87.238.168.0 / 21
Duocast
AS31477
93.184.96.0 / 20
Duocast
AS31477
2001:67c:6b8:: / 48
Duocast
AS31477