z-push working but can not delete mails or move mails!

[Soliva Andrea comcept.ch User]

Hi User list

quick question: I working with kolab 2.3.2 and all works really nice.  
I tried today z-push with my IPhone (iOS 5) and was supprised that  
this was working also without problems (except one thing) from mail  
perspective (did not yet test calender etc.). This what is not working  
is to move a mail on my mobile from one folder to the other. I also  
can not delete mails from the inbox means I receive an error that this  
was not possible. As a pity there is no error message in z-push log.

Can somebody point me to the correct direction meaning what is missing?

10/24/11 16:11:29 [30731] : user at mydomain.ch : NOTICE : Forced to foldermode
10/24/11 16:11:29 [30731] : user at mydomain.ch : INBOX not modified
10/24/11 16:11:29 [30731] : user at mydomain.ch : GetMessageList not  
modified (IN CACHE)INBOXcount : 3 exectime : 0.022082090377808 seconds
10/24/11 16:11:29 [30731] : user at mydomain.ch : IMAP connection closed
10/24/11 16:11:53 [30819] : user at mydomain.ch : Connecting to  
{kolab.mydomain.ch:143/imap/notls/norsh}
10/24/11 16:11:54 [30819] : user at mydomain.ch : KolabBackend Version :  
0.7.5.20110619
10/24/11 16:11:54 [30819] : user at mydomain.ch : KolabActiveSyndData  
Version : 20100707
10/24/11 16:11:54 [30819] : user at mydomain.ch : IMAP connection opened  
sucessfully user : user at mydomain.ch
10/24/11 16:11:54 [30819] : user at mydomain.ch : Setup :  
user at mydomain.ch Mobile ID :Appl8694011J3NR Proto Version : 2.5  
DeviceType : iPhone DeviceAgent : Apple-iPhone2C1/901.334
10/24/11 16:11:54 [30819] : user at mydomain.ch : NOTICE : Forced to foldermode
10/24/11 16:11:54 [30819] : user at mydomain.ch : INBOX not modified
10/24/11 16:11:54 [30819] : user at mydomain.ch : GetMessageList not  
modified (IN CACHE)INBOXcount : 3 exectime : 0.015321969985962 seconds
10/24/11 16:11:54 [30819] : user at mydomain.ch : IMAP connection closed
10/24/11 16:12:39 [30795] : user at mydomain.ch : Connecting to  
{kolab.mydomain.ch:143/imap/notls/norsh}
10/24/11 16:12:39 [30795] : user at mydomain.ch : KolabBackend Version :  
0.7.5.20110619
10/24/11 16:12:39 [30795] : user at mydomain.ch : KolabActiveSyndData  
Version : 20100707
10/24/11 16:12:39 [30795] : user at mydomain.ch : IMAP connection opened  
sucessfully user : user at mydomain.ch
10/24/11 16:12:39 [30795] : user at mydomain.ch : Setup :  
user at mydomain.ch Mobile ID :Appl8694011J3NR Proto Version : 2.5  
DeviceType : iPhone DeviceAgent : Apple-iPhone2C1/901.334
10/24/11 16:12:39 [30795] : user at mydomain.ch : NOTICE : Forced to foldermode
10/24/11 16:12:39 [30795] : user at mydomain.ch : GetFolderMode exectime  
: 0.058681011199951 seconds
10/24/11 16:12:39 [30795] : user at mydomain.ch : IMAP connection closed

kind regards

Andrea Soliva