[Dovecot] Sieve filterset not activating in Dovecot 2.0.15 with, Sieve plug-in and Roundcube 0.5.3: "NO (TRYLATER) Internal Error." (Steffen Kaiser)

[Joe Lourenco]

Thank you Steffen Kaiser.  I enabled the auth_debug and saw this error
for permissions:

Aug 22 13:41:44 managesieve($u): Error: sieve-storage: Creating
symlink() /home/$u/.dovecot.sieve to sieve/Out of
office.sieve failed: Permission denied

The user's home directory was owned by root.

Can not explain it why it was so.

Thanks again!

> On Wed, 21 Aug 2013, Joe Lourenco wrote:
>
> > roundcube: S: NO (TRYLATER) "Internal error occured. Refer to server log
> > for more information. [2013-08-21 19:01:13]"
>
> > Nothing is showing up on the server log.
>
> Check out Dovecot's error log and search for that timestamp of the
> message, it is there - unless, say, an out of disk error prevented the
> logging.
>