2.1.22 (17-Apr-2016)

  i18n

    - Fixed a typo in the German options.html template.  (LP: #1562408)

    - An error in the Brazilian Portugese translation of Quarterly has been
      fixed thanks to Kleber A. Benatti.

    - The Brazilian Portugese translation has been updated by Emerson Ribeiro
      de Mello.

  Bug fixes and other patches

    - All addresses in data/virtual-mailman are now properly appended with
      VIRTUAL_MAILMAN_LOCAL_DOMAIN and duplicates are not generated if the
      site list is in a virtual domain.  (LP: #1570630)

    - DMARC mitigations will now find the From: domain to the right of the
      rightmost '@' rather than the leftmost '@'.  (LP: #1568445)

    - DMARC mitigations for a sub-domain of an organizational domain will now
      use the organizational domain's sp= policy if any.  (LP: #1568398)

    - Modified NewsRunner.py to ensure that messages gated to Usenet have a
      non-blank Subject: header and when munging the Message-ID to add the
      original to References: to help with threading.  (LP: #557955)

    - Fixed the pipermail archiver to do a better job of figuring the date of
      a post when its Date: header is missing, unparseable or has an obviously
      out of range date.  This should only affect bin/arch as ArchRunner has
      code to fix dates at least if ARCHIVER_CLOBBER_DATE_POLICY has not been
      set to 0 in mm_cfg.py.  If posts have been added in the past to a list's
      archive using bin/arch and an imported mbox, running bin/arch again could
      result is some of those posts being archived with a different date.
      (LP: #1555798)

    - Fixed an issue with CommandRunner shunting a malformed message with a
      null byte in the body.  (LP: #1553888)

    - Don't collapse multipart with a single sub-part inside multipart/signed
      parts.  (LP: #1551075)