fetchmail-6.4.16

[Douglas R. Reno]

New point version

[Pierre Labastie]

fetchmail-6.4.16 (released 2021-02-08, 27707 LoC):

# BUG FIXES
* fetchmail's --configdump, and fetchmailconf, lacked support for the
  sslcertfile option. --configdump support added by Earl Chew,
  Gitlab issue #25, merge request !28.
* fetchmail's manual page was never updated to reflect 6.2.5's change about the
  duplicate-killer code for multidrop mode, which read
  "* Dup-killer code now keys on an MD5 hash of the raw headers."
  ...instead of just the Message-ID. [commit 9dd8400, 2003-10-10 by esr]
  The manual page was now updated accordingly and documents
  historic behaviour:
  start to 5.0.7 no duplicate suppression;
  5.0.8 to 6.2.4 duplicate suppression only by Message-ID;
  6.2.5 to 6.4.X duplicate suppression by entire raw header.
  Manpage bug found by Julian Bane debugging "duplicate message" behaviour.
* ./configure no longer runs AC_LIB_LINKFLAGS (how to link) checks
  when called --without-ssl

# FEATURES
* fetchmail --version [fetchmail -V] now queries and prints the SSL/TLS
  library's "SSL default trusted certificate" file or directory (mind the word
  "default"), where the OpenSSL-compatible TLS implementation will look for
  trusted root, meaning certification authority (CA), certificates.
  NOTE 1: watch the output carefully if the line prints the defaults
  or the configured path (without "default").
  NOTE 2: SSL_CERT_DIR and SSL_CERT_FILE are documented environment variables
  for OpenSSL 1.1.1 to override the *default* locations (those compiled into
  OpenSSL or possibly in its configuration file).
  This was added when Gene Heskett was debugging his setup and the
  information "where does OpenSSL look" was missing.
* fetchmail --version now prints version of the OpenSSL library that
  it was compiled against, and that it is using at runtime, and also
  the OPENSSL_DIR and OPENSSL_ENGINES_DIR (if available).

# TRANSLATION UPDATES
  These fine people have contributed updated translations for fetchmail,
  in no particular order:
* sq:    Besnik Bleta [Albanian]
* eo:    Keith Bowes [Esperanto]
* cs:    Petr Pisar [Czech]
* pl:    Jakub Bogusz [Polish]
* sv:    Göran Uddeborg [Swedish]
* fr:    Frédéric Marchal [French]

# KNOWN BUGS AND WORKAROUNDS
  (This section floats upwards through the NEWS file so it stays with the
  current release information)
* Fetchmail does not handle messages without Message-ID header well
  (See sourceforge.net bug #780933)
* Fetchmail currently uses 31-bit signed integers in several places
  where unsigned and/or wider types should have been used, for instance,
  for mailbox sizes, and misreports sizes of 2 GibiB and beyond.
  Fixing this requires C89 compatibility to be relinquished.
* BSMTP is mostly untested and errors can cause corrupt output.
* Fetchmail does not track pending deletes across crashes.
* The command line interface is sometimes a bit stubborn, for instance,
  fetchmail -s doesn't work with a daemon running.
* Linux systems may return duplicates of an IP address in some circumstances if
  no or no global IPv6 addresses are configured.
  (No workaround. Ubuntu Bug#582585, Novell Bug#606980.)
* Kerberos 5 may be broken, particularly on Heimdal, and provide bogus error
  messages. This will not be fixed, because the maintainer has no Kerberos 5
  server to test against. Use GSSAPI.

[Pierre Labastie]

Fixed at r24202