On 31.3.2013, at 14.07, Andreas Meyer <anmeyer@anup.de> wrote:

How do I know what is specified in the global mail_plugins?

doveconf |grep mail_plugins

mail_plugins =

You have nothing. Easier to test: "doveconf mail_plugins"

mail_plugins = " quota sieve" mail_plugins = " quota imap_quota autocreate" mail_plugins = " sieve"

All of these have intendation, so they are within protocol {} sections, which is visible if you don't use |grep directly.

Is it just what is defined in the dovecot.conf and when there is nothing defined there are no global mail_plugins per default?

It's the mail_plugins setting that isn't inside any section {}.