[Users] MIME Typ Error on Startup

[Michael]

Hello,

i am a new User of Claws Mail.  I use Claws Mail since 3 days. A very
powerfull Tool. 

I setup (and use) only IMAP4, and PlugIns PGP MIME and Core, ClamAV
(Version: 3.11.1) 

Every fresh Startup from Claws Mails shows me the Error-Msg:

Fehler beim Überprüfen: (Error to check)
/home/michael/.claws-mail/mimetmp/00000007.mimetmp: lstat() failed:
Permission denied. ERROR

Why have Claws Mail no rights for his "own" TMP files? And what can i
do whit this?  I found: "lstat - get symbolic link status" (0)

I use Claws Mail from Debian (Source): 3.11.1-3 
And it runs on:  Linux CLAWS-PC 3.16.0-4-amd64 #1 SMP Debian
3.16.7-ckt11-1+deb8u4 (2015-09-19) x86_64 GNU/Linux

Ahoj
Michael

(0) http://pubs.opengroup.org/onlinepubs/009695399/functions/lstat.html
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