OK, this appears to be fixed now.
> On Jul 23, 2020, at 2:33 PM, Michael Sweet via ipp <ipp at pwg.org> wrote:
>> Looks like the HTTPS redirect is busted; you need "www.pwg.org" as "pwg.org" has the old (beta) site on it...
>> Working on a fix...
>>>> On Jul 23, 2020, at 2:10 PM, Rizzo, Christopher via ipp <ipp at pwg.org> wrote:
>>>> The page it's on is pwg.org/ipp/everywhere.html
>>>> The bad link is https://ftp.pwg.org/pub/pwg/tools/sw-ippeveselfcert10-20181109-macos.zip>>>> Also noticed the Ubuntu LTS Tools and Windows Tools links are bad.
>>>> Thanks,
>> Chris
>>>> Christopher Rizzo
>> Xerox Corporation
>> GDG/Discovery/Advance Technology
>> 26600 SW Parkway Ave.
>> Wilsonville, OR 97070-9251
>> Phone: (585) 314-6936
>> Email: Christopher.Rizzo at xerox.com>>>> "The realization came over me with full force that a good part of the remainder of my life was going to be spent in finding errors in my own programs."
>> -Maurice Wilkes, Memoirs of a Computer Pioneer
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>>ipp at pwg.org>>https://www.pwg.org/mailman/listinfo/ipp>> ________________________
> Michael Sweet
>>>> _______________________________________________
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Michael Sweet