ANNOUNCE: The 6.6.0.rc2 release candidate of fetchmail is available (TLS/STARTTLS support for SMTP)

Matthias Andree via Fetchmail-announce <[email protected]> Mon, 13 Oct 2025 19:36:09 +0200
Newsgroups gmane.mail.fetchmail.announce
Message-ID <aO04iX4sqDubnWSp__21577.9923413479$1760377006$gmane$org@ryzen.an3e.de>
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The 6.6.0.rc2 release of fetchmail is now available at the usual locations,
including <https://downloads.sourceforge.net/project/fetchmail/branch_6.6/>.

The source archive is available at:
<https://downloads.sourceforge.net/project/fetchmail/branch_6.6/fetchmail-6.6.0.rc2.tar.xz/download>

The detached GnuPG signature is available at:
<https://downloads.sourceforge.net/project/fetchmail/branch_6.6/fetchmail-6.6.0.rc2.tar.xz.asc/download>

The SHA256 hashes for the tarballs are:
SHA2-256(fetchmail-6.6.0.rc2.tar.xz)= e86fb99ff97398bedab92fe6e24bb5d7253363f7ba61d0915666caf6763742a4

Changes since rc1:
------------------
* ee3eb70f 2025-10-13 | Bump version to 6.6.0.rc2. (tag: 6.6.0.rc2)
* 560d636e 2025-10-12 | Support GSSAPI in meson builds.
* c32bb1e7 2025-10-11 | Fix/reformat meson build instructions.
* 7d6b903a 2025-10-11 | Fix LOCALEDIR for meson builds.
* 521d0607 2025-10-11 | Update German translation.
* 3038cdf0 2025-10-11 | Support wolfSSL in meson builds.
* bc09484d 2025-10-11 | Strip OPIE, add meson instructions
* dc490e4c 2025-10-11 | SMTP: also default-/notls 127.0.0.1/::1 and some variants
* a7861fa1 2025-10-11 | Rename match_regex -> regex_ere_search
* 41874f11 2025-10-11 | options.c: Add --esmtp* opts to --help.
* c80bcc5e 2025-10-10 | Set folders and tags to 6.6.0
* f44d0e6e 2025-10-10 | NEWS: remove angle brackets from MAIL FROM:<>


Here are the release notes:
--------------------------------------------------------------------------------
fetchmail-6.6.0 (not yet released):

## FEATURE:
* SMTP TLS and STARTTLS support. By default, this works opportunistically,
  attempting to set up a TLS connection to the smtphost if it understands EHLO
  and offers STARTTLS, but will not enforce peer certificate validity for
  compatibility, esp. because "localhost" (the default SMTP host) usually
  isn't listed in the X.509 certificates.
    Behavior can be tweaked by adding /notls (cleartext connection), /tls
  (TLS-wrapped connection, negotiating TLS before conversing otherwise),
  or /starttls (requiring EHLO to offer STARTTLS, requesting the latter and
  requiring the server certificate to validate) to the SMTP host's name.
    Also, you can add /tlsproto=... where ... accepts the same parameters
  as the --sslproto option, which see.
  Ports, if not specified, default to 25 for opportunistic and /notls modes,
  465 for /tls and 587 for /starttls, but can be overridden either by giving,
  say /25 or /smtp for /starttls.

## TRANSLATIONS:
These will be requested only after fetchmail 6.5.7 will have been released.

-------------------------------------------------------------------------------

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