RE: authinfo gnutls netrc.el auth-sources & smtpmail-starttls-credentials

[MON KEY <monkey@sandpframing.com>]

> auth-source.el currently is part of Gnus, so it uses Gnus logging
> facilities.  If it's moved out, we can adjust the logging. Perhaps
> you're suggesting we need an auth-source-verbose variable?

I've been thinking this over a bit more.
Following 2(two) defcustoms `imap-log' and `imap-debug' are from:
`../emacs/23.0.94/lisp/net/imap.el'

These seem like sensible implimentations which auth-sources might find
useful to reflect.
;;; ==============================

(defcustom imap-log nil
  "If non-nil, an imap session trace is placed in `imap-log-buffer'.
Note that username, passwords and other privacy sensitive
information (such as e-mail) may be stored in the buffer.
It is not written to disk, however.  Do not enable this
variable unless you are comfortable with that.

See also `imap-debug'."
  :group 'imap
  :type 'boolean)

(defcustom imap-debug nil
  "If non-nil, trace imap- functions into `imap-debug-buffer'.
Uses `trace-function-background', so you can turn it off with,
say, `untrace-all'.

Note that username, passwords and other privacy sensitive
information (such as e-mail) may be stored in the buffer.
It is not written to disk, however.  Do not enable this
variable unless you are comfortable with that.

This variable only takes effect when loading the `imap' library.
See also `imap-log'."
  :group 'imap
  :type 'boolean)