I'm not a Radius user but I can do a review.  The package builds fine in mock
(devel branch) and rpmlint is silent.

Issues:
BuildRequires: perl is not allowed; cpanspec should be able to generate a proper
specfile that doesn't do this.
There's no point in the BuildRequires: for perl(IO) and perl(Digest::MD5) as
these are part of base perl, but I don't supposed there's any harm in keeping
them.  The only thing that's strictly necessary is
BuildRequires: perl(Data::HexDump)

Review:
* package meets naming and packaging guidelines.
* specfile is properly named, is cleanly written, uses macros consistently and
conforms to the Perl template.
* license field matches the actual license.
* license is open source-compatible.  It's not included separately in the
package, but this is not necessary as the upstream tarball does not include it.
* source files match upstream:
   8427f931a4e0e689ecf8ddf30e5a0ea7  RadiusPerl-0.12.tar.gz
   8427f931a4e0e689ecf8ddf30e5a0ea7  RadiusPerl-0.12.tar.gz-srpm
* package builds in mock.
X BuildRequires: perl not permitted.
* no shared libraries.
* package is not relocatable.
* owns the directory it creates.
* no duplicates in %files.
* file permissions are appropriate.
* %clean is present.
* code, not content.
* documentation is small, so no -docs subpackage is necessary.
* %docs are not necessary for the proper functioning of the package.
* no headers.
* no pkgconfig files.
* no libtool .la droppings.
* not a GUI app.
* The package owns %{perl_vendorlib}/Authen, which will probably also be owned
by any module under the Authen:: namespace.  However, there are no dependencies
which could create this directory so there is no alternative but for this
package to own it.

(In reply to comment #1)

> BuildRequires: perl is not allowed; cpanspec should be able to generate a proper
> specfile that doesn't do this.
Removed.

> There's no point in the BuildRequires: for perl(IO) and perl(Digest::MD5) as
> these are part of base perl, but I don't supposed there's any harm in keeping
> them.
Removed.

Thx for the review.
Upgraded files are available at: 
http://home.bawue.de/~ixs/perl-Authen-Radius/

Looks good and builds properly.  BTW, you left the perl(IO) and
perl(Digest::MD5) buildreqs in, but this isn't a blocker.

APPROVED

*** Bug 1472175 has been marked as a duplicate of this bug. ***

perl-Authen-Radius-0.26-4.el7 perl-Data-HexDump-0.02-26.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2017-d0f7e44663

perl-Authen-Radius-0.26-4.el7, perl-Data-HexDump-0.02-26.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.