[PATCH] doc: add POP3 archive link, favor AUTH=ANONYMOUS for IMAP

[PATCH] doc: add POP3 archive link, favor AUTH=ANONYMOUS for IMAP

[Eric Wong]

POP3 access is less straightforward since it requires a UUID
cookie embedded into the username to track deletes, and also
requires embedding the mailbox name into the username (since
POP3 has a 1:1 user:folder mapping).  Of course, a Tor .onion
endpoint is supported for anonymity.

AUTH=ANONYMOUS is recommended for IMAP since bots were attempting
to use compromised logins to scrape the public mail archives for
private info and burning up my CPU.
---
 .olddoc.yml |  4 ++--
 ISSUES      |  7 ++++---
 README      | 11 ++++++-----
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/.olddoc.yml b/.olddoc.yml
index 10ddc07..9780a83 100644
--- a/.olddoc.yml
+++ b/.olddoc.yml
@@ -14,8 +14,8 @@ noindex:
 - unicorn_rails_1
 public_email: unicorn-public@yhbt.net
 imap_url:
-- imaps://yhbt.net/inbox.comp.lang.ruby.unicorn.0
-- imap://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn.0
+- imaps://;AUTH=ANONYMOUS@yhbt.net/inbox.comp.lang.ruby.unicorn.0
+- imap://;AUTH=ANONYMOUS@7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn.0
 nntp_url:
 - nntps://news.public-inbox.org/inbox.comp.lang.ruby.unicorn
 - nntp://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn
diff --git a/ISSUES b/ISSUES
index 015de37..083b1c8 100644
--- a/ISSUES
+++ b/ISSUES
@@ -81,14 +81,15 @@ Mail is publicly-archived, SMTP subscription is discouraged to avoid
 servers being a single-point-of-failure, so Cc: all participants.
 
 The HTTP(S) archives have links to per-thread Atom feeds and downloadable
-mboxes.  Read-only IMAP(S) folders and NNTP(S) newsgroups are also available.
+mboxes.  Read-only IMAP(S) folders, POP3, and NNTP(S) newsgroups are available.
 
 * https://yhbt.net/unicorn-public/
 * http://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/unicorn-public/
-* imaps://yhbt.net/inbox.comp.lang.ruby.unicorn.0
-* imap://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn.0
+* imaps://;AUTH=ANONYMOUS@yhbt.net/inbox.comp.lang.ruby.unicorn.0
+* imap://;AUTH=ANONYMOUS@7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn.0
 * nntps://news.public-inbox.org/inbox.comp.lang.ruby.unicorn
 * nntp://news.gmane.io/gmane.comp.lang.ruby.unicorn.general
+* https://yhbt.net/unicorn-public/_/text/help/#pop3
 
 Full Atom feeds:
 * https://yhbt.net/unicorn-public/new.atom
diff --git a/README b/README
index 22c27e8..5411003 100644
--- a/README
+++ b/README
@@ -140,11 +140,12 @@ Read-only NNTP access is available at:
 nntps://news.public-inbox.org/inbox.comp.lang.ruby.unicorn and
 nntp://news.gmane.io/gmane.comp.lang.ruby.unicorn.general
 
-Read-only IMAP access is also avaialble at:
-imaps://yhbt.net/inbox.comp.lang.ruby.unicorn.0 and
-imap://7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn.0
-The AUTH=ANONYMOUS mechanism is supported, as is any username+password
-combination.
+Read-only IMAP access is also available at:
+imaps://;AUTH=ANONYMOUS@yhbt.net/inbox.comp.lang.ruby.unicorn.0 and
+imap://;AUTH=ANONYMOUS@7fh6tueqddpjyxjmgtdiueylzoqt6pt7hec3pukyptlmohoowvhde4yd.onion/inbox.comp.lang.ruby.unicorn.0
+
+Archives are also available over POP3, instructions at:
+https://yhbt.net/unicorn-public/_/text/help/#pop3
 
 For the latest on unicorn releases, you may also finger us at
 unicorn@yhbt.net or check our NEWS page (and subscribe to our Atom