[Dovecot] IPhone wont delete IMAP messages from dovecot mailbox

[tibby at tibby.hu]

On 2012-11-14 16:08, Robert Schetterer wrote:
> Am 14.11.2012 15:55, schrieb tibby at tibby.hu:
>> On 2012-11-14 14:59, Håkon Alstadheim wrote:
>>> On 13. nov. 2012 15:44, tibby at tibby.hu wrote:
>>>> Hello!
>>>> I've got dovecot running with postfix. Have virtual users under 
>>>> vmail
>>>> folder.
>>>> When I connect with outlook, I can read, delete messages.
>>>> When I sign on with webmail, also can delete messages,
>>>> Mutt is working as well on the mail server, can delete messages.
>>>>
>>>> Once the message is deleted it moves  to the trash. Works as it
>>>> supposed to.
>>>>
>>>> But on Iphone, when I add a mail user, got the mailbox synced with
>>>> IMAP I can see the INBOX, but when I delete a message, get this 
>>>> error:
>>>> "Unable to Move Message The message could not be moved to the 
>>>> mailbox
>>>> Trash."
>>>>
>>>>
>>>> 
>>>> http://www.netchimp.co.uk/webdesign/wp-content/uploads/2011/12/iphone_unable_to_move_message.png
>>>>
>>>>
>>>>
>>>> What causing this problem?
>>>> Please Help.
>>>>
>>>>
>>> I've seen this. Fixed it for my device by changing the settings on
>>> the Ipad, and then changing them back. Seems the local trash folder 
>>> is
>>> not created automatically on iOS.
>>
>> But I dont want to use the IOS trash folder. I want the phone to use 
>> the
>> trash on the mail server.
>>
>
> looks like iphone is special ( why i dont wonder... )
>
> 
> http://support.ecenica.com/email/troubleshooting-draft-trash-folders-iphone/
>
> some config may also conflict with "archive" settings on iphone,
> as ever ,behave may also different in different versions,
> at all ,nothing direct dovecot related  , i am not up2date with apple
> stuff , isnt there a better imap mail client in there app store ?
>
>
> Best Regards
> MfG Robert Schetterer

With the iPhone there is this guide.
If I set imap prefix path to INBOX from / as it says, then works fine.
What do I need to configure to get this working with / by default? I 
Think this would solve the problem.
http://www.netchimp.co.uk/webdesign/iphone-ipad-macbook-mac/iphone-unable-to-move-message-to-trash-imap/