[Bug 670250] Re: upgrade to latest stable version 2.0.6

[Anders Lind]

It would be great with a Dovecot2 package like the one Holger Mauermann
made.

Thomasz Sterna also made some Dovecot 2 packages for Lucid LTS including
the antispam plug-in: http://tomasz.sterna.tv/2010/11/dovecot-2-0-6-for-
ubuntu-lucid/ . Thomasz Sternas packages are also referenced to at the
bottom of the Ubuntu section of
http://wiki2.dovecot.org/PrebuiltBinaries#Ubuntu .

Also Carsten Uppenbrink has made some Dovecot 2 packages
https://launchpad.net/~carsten-uppenbrink-net/+archive/dovecot2 , but it
is stated on the page “Don't use!!”

Perhaps Carsten Uppenbrink, Thomasz Sterna and Holger Mauermann have
some experiences that could be merged into an official Ubuntu Dovecot2
package (with the antispam plug-in to e.g. support Dspam folder
filtering.)

Dspam with the antispam plug-in seems to have some advantages over spamassassin since it is easier for the user to manage.
The antispam plug-in for dovecot 2 makes it easy to indicate what is spam and what is not simply by moving the messages to or away from a spam folder.
The user does also not have to think about threshold or kill levels for spam like in spamassassin.
It is claimed that Dspam should be quicker than spamassassin and use less resources.

I have been setting up a local system with Dovecot 1.2.9, but when it came to finding some antispam solution I stumbled upon dspam on https://help.ubuntu.com/community/Postfix/Dspam
which made me curious.
After that I read about the Dovecot antispam plug-in which for me in combination with Dspam seems to be the closest solution to a user-friendly antispam solution. The reason for going with Dovecot 2 is because the antispam plug-in has corrected some bugs - see below in the links section. But also if going Dovecot 2 now could save some trouble instead of  later on (by converting a running Dovecot 1 system to Dovecot 2) has made me think going straight to Dovecot 2 before rolling out this new local mail system.

For people with interest in Dspam and the Dovecot antispam plug-in
follows here some links.

Regarding Dspam integration and the antispam plug-in it is possible to read more about what other people have tried here:
http://www.eanderalx.org/blog:linux:seiichiros_mail_setup_ubuntu
http://www.seiichiro0185.org/blog:2011:01:my_mailserver_setup_postfix_dspam_dovecot
http://johannes.sipsolutions.net/Projects/dovecot-dspam-integration / http://johannes.sipsolutions.net/Projects/dovecot-antispam
http://hg.dovecot.org/dovecot-antispam-plugin (changes to antispam plugin for Dovecot 2)

The Dspam community seems to be active and have revived Dspam:
http://dspam.sourceforge.net/index.php
http://dspam.expass.de/wiki/Main_Page
http://sourceforge.net/apps/mediawiki/dspam/index.php?title=Main_Page
http://sourceforge.net/apps/mediawiki/dspam/index.php?title=Project_Road_Map

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https://bugs.launchpad.net/bugs/670250

Title:
  upgrade to latest stable version 2.0.6