Multiple sync errors especially can eventually lead to new email received delivery in Outlook to be drastically delayed or simply blocked (instantly received on server, but appearing only one hour after or never in Outlook Inbox despite multiple send/receiveĪctions from email client automatically or end-user manually). (many sync error log messages created per day in the sync error folder in Outlook, without clear code or message indicating which folder/msg are at fault). once again causing a discrepancy between Outlook and Some how Outlook think a folder 'My Folder' (without trailing space) and 'My Folder ' (with trailing space) are the same 'My Folder' folder, while server side they are two distinct separate folders. In Outlook end-up as part of the folder name but remain invisible to individual as the space character is invisible to the eye on screen if a following work is not set).

In a similar way if a folder is named with a trailing space 'My Folder ' (which often happened after selecting some text by double clicking on it, Windows somehow tend to always add an extra space to the selection which when copy/paste to create folder name due to Outlook sync issues with some folders or their contents. Unfortunately because of this discrepancy between Outlook (email client) and server, sync issues appears causing email not to be received/delayed in the worth scenarios. I understand that Outlook is case-insensitive but it should not assume the IMAP server is and shall always update the server of name changes in all conditions.įor Outlook I understand that 'My folder' and 'My Folder' are considered as the same folder, but for a server it is not necessarily the case if it is case sensitive (most IMAP servers are except perhaps MS Exchange) 'My folder' and 'My Folder' are two different The server of the name change causing discrepancies.

In Outlook 2016 (case-insensitive), if an IMAP mailbox is setup connected to a non-Exchange case-sensitive server (from third party suppliers), why when a folder is renamed from 'My folder' to 'My Folder' (change case letter from f to F), Outlook does not inform

Outlook 2016 imap sync issues