moving message on nearly full mailbox with IMAP

[Dave McMurtrie]

Christian Anton wrote:
> Hi everybody again,
> 
> As Ken helped me with my feature request for the quota behavior of cyrus-imapd 
> i now have one more question i don't understand.
> 
> If i have a Mailbox with 5MB quota, there is 4.9MB in use and i want to move 
> one message with 1 MB from one folder to another, cyrus gives me an error 
> message that says i'm "over quota".
> Why does moving a message need space in the mailbox, i don't want to copy it 
> but to move. 
> 
> Tried so with squirrelmail and the webmail-Interface of openxchange.

Because IMAP doesn't provide a "move" operation for messages.  Your
client is probably first doing an append of the message to the
destination folder (which is what's putting it over quota) then storing
the delete flag of the original message and expunging.

Thanks,

Dave
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