- What is APA-S?

It's the alt.privacy.anon-server Usenet group.

- What is the purpose of APA-S?

To promote and enable Internet privacy, privacy in general.

- Does it cost money?

Only the volunteers who support it.

- Can I volunteer?

Yes, ask us how!

- How do I participate?

Post to the group! Say cool things, participate.

- How do I do that?

Download the client software to send anonymous email/Usenet postings.

- What is this software and where do I get it?

Client software

.. Mixmaster

Quicksilver Lite (Mixmaster/Windows), hosted by SEC3.
<https://sec3.net/www.quicksilvermail.net/qslite.html>

You can also find the original Quicksilver there.

Wayback Machine
<https://web.archive.org/web/20200511101316/https://quicksilvermail.net/>

Mixmaster 4096 Remailer Project at GitHub
<https://github.com/merkinmuffley/mixmaster4096>

.. YAMN

What is YAMN? Yet Another Mix Net - A Mixmaster derivative

<https://github.com/crooks/yamn>

<https://www.sec3.net/misc/>

YAMN client, hosted by Grant at tnetconsulting.

<https://dotfiles.tnetconsulting.net/files/YAMN_Remailer_Client_
v0.4.05_[build_1322].zip>

Wayback Machine

<https://web.archive.org/web/20210808062946/https://dotfiles.tne
tconsulting.net/home.html>

<https://web.archive.org/web/20210808063147/https://dotfiles.tne
tconsulting.net/files/YAMN_Remailer_Client_v0.4.05_%5Bbuild_1322
%5D.zip>

.. OmniMix anonymous Windows remailing system (Mixmaster and Yamn)

<https://www.danner-net.de/om.htm>

- What else do I need?

Mail relays.

<https://www.sec3.net/misc/mail-relays.txt>

Mail2news servers

mail2news@dizum.com
mail2news@m2n.mixmin.net
mail2news@neodome.net