[Tickets #13009] Re: AS sync of IMAP messages that are in trash folder AND in another folder with 'deleted'-flag

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Ticket URL: http://bugs.horde.org/ticket/13009
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  Ticket             | 13009
  Updated By         | Michael Rubinsky <mrubinsk at horde.org>
  Summary            | AS sync of IMAP messages that are in trash folder AND
                     | in another folder with 'deleted'-flag
  Queue              | Synchronization
  Version            | Git master
  Type               | Bug
  State              | Not A Bug
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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Michael Rubinsky <mrubinsk at horde.org> (2014-03-04 22:17) wrote:


> 1) Ignore the flag. This is basically what you do at the moment, right?
> 2) Regard messages with this flag as removed.
>
> Do you think that 2) is worth to think about?

No. This causes all kinds of side effects and data integrity issues.

> As far as I see, it would work pretty well: If a message is marked  
> as deleted, it disappears from synced devices. If an IMAP-client  
> undeletes it, in the synced devices it is simply added again...

Either the email is on the client or it's not. Besides the fact that  
we would need to introduce a whole bunch of additional logic to detect  
these changes, there can't be any sort-of-on-the-client-but-hidden  
scenario. We are not going to start to have to track which messages  
are really on the client and which are not.

The "deleted" flag is not honored by ActiveSync clients, period.