Comment 1 for bug 1934155

Bill,

as to your report, I'll break it down along the same bug numbers.
Note I am speaking as the upstream maintainer here and am unaware of Ubuntu's or Debian's packaging decisions.

Bug #1. Fetchmail behaves properly. You requested some sslproto on a non-wrapped port (i. e. no "ssl" option), so fetchmail tries STARTTLS instead, which then fails. I suggest you re-read the manual for the relevant options that you are using and potential references from those options to others, if any. This is deliberately worded quite vaguely.

Bug #2 fetchmail has a 'login or authentication' error it cannot spell out in more detail for you, hence "unknown". Feel free to propose a better wording.

3a. I suggest you read the section "SOCKS" of the manual page. New options are quite high maintenance and I can't test them upstream for lack of socks proxies.

3b. From your earlier report [*] I suppose you might get away with something such as:

poll underwood2hj3pwd.onion via 127.0.0.1
        plugin "socat STDIO SOCKS4A:127.0.0.1:%h:%p,socksport=9050"
# other options here

_____
[*] https://bugs.launchpad.net/ubuntu/+source/fetchmail/+bug/1924609