Comment 4 for bug 345263

This package is required to install roundcube-core (see Bug #331944). According to the changelog of roundcube, it's not possible to use db:
roundcube (0.2~stable-1) unstable; urgency=low

  * New upstream version. Closes: #503573, #504570.
      + Add SQL update scripts for this new release and for
        0.2~alpha. Remove copy of SQL upgrade script from debian/rules.
      + Remove patch for CVE-2008-5620 which is now fixed upstream.
      + Remove patch correcting a vulnerability in html2text.php.
      + Remove patch fixing login issue. This is fixed upstream.
      + Remove patch setting the default backend to db instead of mdb2:
        this is not possible any more. We depend on php-mdb2 now.
      + Update patch to use packaged tinymce.