duocast.net SPF record

1 / 10 Lookups
0 Issues
21,505 IPv4 addresses
7.92 ⋅ 10 28 IPv6 addresses
v=spf1 include:_spf.duocast.net ip4:141.138.141.168 ip6:2001:1af8:4200:b000::/64 ip4:109.234.104.0/21 -all Copied

Terms

include:
_spf.duocast.net
Evaluate this SPF record and pass if it
passes.
or else
ip4:
141.138.141.168 / 32
pass if the sender's IP is between
141.138.141.168 and 141.138.141.168 (inclusive).
Signet
AS20857
or else
ip6:
2001:1af8:4200:b000:: / 64
pass if the sender's IP is between
2001:1af8:4200:b000:: and 2001:1af8:4200:b000:ffff:ffff:ffff:ffff (inclusive).
LeaseWeb Netherlands
AS60781
or else
ip4:
109.234.104.0 / 21
pass if the sender's IP is between
109.234.104.0 and 109.234.111.255 (inclusive).
Key-Systems
AS196763
or else
-all
fail the email's SPF check.

Included records

v=spf1 include:_spf.duocast.net ip4:141.138.141.168 ip6:2001:1af8:4200:b000::/64 ip4:109.234.104.0/21 -all
6 x ip4 2 x ip6 ?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
141.138.141.168
Signet
AS20857
2001:1af8:4200:b000:: / 64
LeaseWeb Netherlands
AS60781
109.234.104.0 / 21
Key-Systems
AS196763