Comment 2 for bug 1924609

///scenario 1: using torsocks///

With this configuration:
```
poll uw via underwood2hj3pwd.onion
        protocol imap
        port 993
        username "billyikes"
        fetchall
```
the terminal output is:
```
$ torsocks fetchmail uw
1618601733 ERROR torsocks[16571]: Unable to resolve. Status reply: 4 (in socks5_recv_resolve_reply() at socks5.c:683)
gethostbyname failed for myhost
Non-recoverable failure in name resolutionCannot find my own host in hosts database to qualify it!
Trying to continue with unqualified hostname.
DO NOT report broken Received: headers, HELO/EHLO lines or similar problems!
DO repair your /etc/hosts, DNS, NIS or LDAP instead.
fetchmail: can't poll specified hosts with another fetchmail running at 15369.
```
and the log output is:
```
1618602068 ERROR torsocks[17358]: Connection refused to Tor SOCKS (in socks5_recv_connect_reply() at socks5.c:549)
fetchmail: Connection errors for this poll:
name 0: connection to underwood2hj3pwd.onion:993 [127.42.42.0/993] failed: Connection refused.
fetchmail: IMAP connection to uw failed: Connection refused
```

///scenario 2: using plugin for socat///

With this configuration:
```
poll uw via underwood2hj3pwd.onion
        plugin "socat STDIO SOCKS4A:127.0.0.1:%h:%p,socksport=9050"
        protocol imap
        port 993
        username "billyikes"
        fetchall
```
the terminal had no output:
```
$ fetchmail uw
```
and the log output is:
```
fetchmail: starting fetchmail 6.3.26 daemon
fetchmail: couldn't find canonical DNS name of uw (underwood2hj3pwd.onion): Name or service not known
fetchmail: Query status=11 (DNS)
```

/// Version info ///

Abridged output of "env LC_ALL=C fetchmail -V":
```
This is fetchmail release 6.3.26+GSS+NTLM+SDPS+SSL-SSLv3+NLS+KRB5.

Copyright (C) 2002, 2003 Eric S. Raymond
Copyright (C) 2004 Matthias Andree, Eric S. Raymond,
                   Robert M. Funk, Graham Wilson
Copyright (C) 2005 - 2012 Sunil Shetye
Copyright (C) 2005 - 2015 Matthias Andree
Fetchmail comes with ABSOLUTELY NO WARRANTY. This is free software, and you
are welcome to redistribute it under certain conditions. For details,
please see the file COPYING in the source or documentation directory.
This product includes software developed by the OpenSSL Project
for use in the OpenSSL Toolkit. (http://www.openssl.org/)

Fallback MDA: (none)
Linux cypher 4.9.0-15-amd64 #1 SMP Debian 4.9.258-1 (2021-03-08) x86_64 GNU/Linux
Taking options from command line and /home/user/.fetchmailrc
Poll interval is 1800 seconds
Logfile is /home/user/logs/fetchmail.log
Idfile is /home/user/.fetchids
Fetchmail will forward misaddressed multidrop messages to user.
Options for retrieving from billyikes@uw:
  Mail will be retrieved via underwood2hj3pwd.onion
  True name of server is underwood2hj3pwd.onion.
  Protocol is IMAP (using service 993).
  All available authentication methods will be tried.
  SSL trusted certificate directory: /etc/ssl/certs
  Server nonresponse timeout is 300 seconds (default).
  Default mailbox selected.
  All messages will be retrieved (--all on).
  Fetched messages will not be kept on the server (--keep off).
  Old messages will not be flushed before message retrieval (--flush off).
  Oversized messages will not be flushed before message retrieval (--limitflush off).
  Rewrite of server-local addresses is enabled (--norewrite off).
  Carriage-return stripping is disabled (stripcr off).
  Carriage-return forcing is disabled (forcecr off).
  Interpretation of Content-Transfer-Encoding is enabled (pass8bits off).
  MIME decoding is disabled (mimedecode off).
  Idle after poll is disabled (idle off).
  Nonempty Status lines will be kept (dropstatus off)
  Delivered-To lines will be kept (dropdelivered off)
  Fetch message size limit is 100 (--fetchsizelimit 100).
  Do binary search of UIDs during 3 out of 4 polls (--fastuidl 4).
  Messages will be SMTP-forwarded to: localhost (default)
  Single-drop mode: 1 local name recognized.
  Server connections will be made via plugin socat STDIO SOCKS4A:127.0.0.1:%h:%p,socksport=9050 (--plugin socat STDIO SOCKS4A:127.0.0.1:%h:%p,socksport=9050).
  No UIDs saved from this host.
```