Tickets :: Comment on [#12945] ActiveSync: Deleting one email in Outlook 2013 results in two mails in Outlook 2013 trash folder

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Comment	>>> Hello, >>> >>> I experienced a litte bug when using Outlook 2013 via ActiveSync to >>> connect to Horde. >>> When I delete an email in Outlook 2013, it is moved to the trash >>> folder correctly. After a few seconds exactly the same email appears >>> in the trash folder, so you now see the deleted email twice. >>> This second email appears only in Outlook, you don't see it in the >>> Horde webmail trash. >> >> This is a known issue. OL is sending a MOVE command to move the email >> to the trash folder (which is correct), but it ALSO manually moves >> the email locally (this is incorrect). All the client is supposed to >> do is remove the email from the old mailbox. The server, in response >> to the MOVE command moves the email to the new folder (In this case >> the Trash folder) and the change is then picked up on the next SYNC >> or PING cycle. SInce OL is manually moving the email, the server has >> no idea it is already in the mailbox (the protocol provides no >> mechanism for this, all changes are done server side and sent to the >> client). >> >>> If you compare the header of the two emails, it slightly differs in >>> the "Content-Type" field, everything else is exactly the same. >>> >>> Deleted email: >>> Content-Type: multipart/alternative; boundary="=_7CrMzMy6GwiFZgAVh3gsUw9" >>> >>> Email which appeared some seconds later: >>> Content-Type: multipart/alternative; boundary="=_yt_nh4i36nWWv2czhvKVfQ1" >>> >>> It seems as when the deleted email is synced to Horde it's header >>> gets changed, so Outlook 2013 sees it as a new item and downloads it >>> again. >> >> No. This is not how sync works. The client doesn't "download" an >> email based on any criteria. The server knows what messages were sent >> to the client based on the message's UID, not any other header values >> and detects any changes in the mailboxes on the IMAP server. These >> changes are sent to the client. Any client initiated changes are sent >> as commands to the server, i.e., "move this message from the INBOX to >> the Trash folder please". The server performs the command and tells >> the client the results, i.e., "I moved the email from the INBOX to >> the Trash folder and it has the following UID value: 432. You should >> remove the old copy of the email from the INBOX folder." >> >>> If you need any further information please don't hesitate to contact me! >>> >>> Best regards, >>> Christian Hailer > > OK, thank you very much for the explanation! > In the meantime I tried to reproduce the same scenario with my > Hotmail account, it can be used via ActiveSync as well. > With Hotmail it doesn't happen, meaning when I delete an email there > isn't a second one in the trash folder afterwards ... what could be > different there? > > Best regards, > Christian
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