iowa.uiowa.edu SPF record

1 / 10 Lookups
0 Issues
589,824 IPv4 addresses
3.40 ⋅ 10 24 IPv6 addresses
v=spf1 ip4:128.255.0.0/16 ip4:129.255.0.0/16 ip6:2620:0:e50::/48 include:spf.protection.outlook.com ?all Copied

Terms

ip4:
128.255.0.0 / 16
pass if the sender's IP is between
128.255.0.0 and 128.255.255.255 (inclusive).
University of Iowa
AS3676
or else
ip4:
129.255.0.0 / 16
pass if the sender's IP is between
129.255.0.0 and 129.255.255.255 (inclusive).
University of Iowa
AS3676
or else
ip6:
2620:0:e50:: / 48
pass if the sender's IP is between
2620:0:e50:: and 2620:0:e50:ffff:ffff:ffff:ffff:ffff (inclusive).
University of Iowa
AS3676
or else
include:
spf.protection.outlook.com
Evaluate this SPF record and pass if it
passes.
Microsoft 365 / Outlook
Inbox software
or else
?all
Don't state if this IP is allowed to send this email.

Included records

v=spf1 ip4:128.255.0.0/16 ip4:129.255.0.0/16 ip6:2620:0:e50::/48 include:spf.protection.outlook.com ?all
6 x ip4 5 x ip6 -all

IP ranges

128.255.0.0 / 16
University of Iowa
AS3676
129.255.0.0 / 16
University of Iowa
AS3676
2620:0:e50:: / 48
University of Iowa
AS3676
40.92.0.0 / 15
Microsoft
AS8075
40.107.0.0 / 16
Microsoft
AS8075
52.100.0.0 / 15
Microsoft
AS8075
52.102.0.0 / 16
Microsoft
AS8075
52.103.0.0 / 17
Microsoft
AS8075
104.47.0.0 / 17
Microsoft
AS8075
2a01:111:f400:: / 48
Microsoft
AS8075
2a01:111:f403:: / 49
Microsoft
AS8075
2a01:111:f403:8000:: / 51
Microsoft
AS8075
2a01:111:f403:c000:: / 51
Microsoft
AS8075
2a01:111:f403:f000:: / 52
Microsoft
AS8075