After each email I send comes following message

[Iris Stern]

The reported error was "Anhängen an mbox:///home/regenbogenstern/.local/share/evolution/mail/local#Sent gescheitert: Ungültiger Ordneradresse »mbox:///home/regenbogenstern/.local/share/evolution/mail/local#Sent«
Stattdessen wird versucht, an den lokalen »Verschickt«-Ordner anzuhängen.".

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: evolution 3.2.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Tue Nov 8 14:25:19 2011
ExecutablePath: /usr/bin/evolution
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 PATH=(custom, no user)
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
SourcePackage: evolution
UpgradeStatus: Upgraded to oneiric on 2011-11-05 (2 days ago)