How to prevent Outlook 2016/2019 IMAP sync issues: Difference between revisions

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Make sure to follow this guidance when creating folders in Outlook, otherwise it might lead to sync issues (send/receive process never ending, new email not received promptly, email sent stuck in Outbox) of your mailbox data with the server.
Make sure to follow this '''guidance when creating folders''' in Outlook, otherwise it might lead to '''sync issues''' of your mailbox data with the server.


e.g Send/Receive process never ending, new email not received promptly and/or email sent stuck in Outbox until Outlook is restarted, etc...
* When creating a folder, remove any trailing space, for example don't create a folder 'MyFolder ' remove the space so it become 'MyFolder'
** Pay particularly attention to this if you copy paste name of folder from somewhere as it may be quite possible during selection or copy a trailing space is added automatically, make sure to remove it after pasting prior creating new folder.


* Avoid dual space in folder name. e.g 'My Folder', remove the extra space so it would be 'My Folder'
* '''Remove any trailing space''' in folder name before creating it, for example don't create a folder '''"MyFolder "''' '''remove the space''' so it become '''"MyFolder"'''
** '''Pay particularly attention''' to this when you '''copy/paste''' folder name from somewhere as it may be quite possible '''during selection or copy''' a trailing '''space may be added''' automatically, make sure to '''remove''' it '''after''' pasting '''prior''' creating new folder.


* '''Avoid dual space''' in folder name. e.g '''"My Folder"''', '''remove the extra spaces''' so it would be '''"My Folder"'''
* Avoid special characters in folder names e.g: '&',':','.'(dot),'..'(double dot),'...'(triple dot), etc... if you need to use a separator other than space, use '-'(hyphen) or '_'(underscore)... Limit folder names to alpha and numeric characters where possible. For example don't create 'Folder 2018 & 2019', instead create 'Folder 2018_2019' or 'Folder 2018 2019' or 'Folder 2018and2019' for example...


* '''Avoid special characters''' in folder names e.g: '&',':','.'(dot),'..'(double dot),'...'(triple dot), etc... if you need to use a separator other than space, use '-'(hyphen) or '_'(underscore)... '''Limit folder names''' to '''alpha''' and '''numeric''' characters where possible. For example don't create 'Folder 2018 & 2019', instead create 'Folder 2018_2019' or 'Folder 2018 2019' or 'Folder 2018and2019' for examples...
* When renaming a folder to change some letter case from 'myFolder' to 'MyFolder' (or any other possible option e.g MYFOLDER,etc...), may sure to rename it first into an intermediary folder with an extra character. For example rename 'myFolder' into 'MyFolder_' (adding underscore) and then again into 'MyFolder' (removing underscore). That is because Outlook/Windows are case-insensitive while the email system is case-sensitive and Outlook does not cope correctly with it during folder rename... because he think 'myFolder' and 'MyFolder' are the same folder, consequently it does not command/instruct the server to modify folder name accordingly... creating a discrepancy that affect data sync... as the two folder (in Outlook and on server) become different...

* '''When renaming a folder to change some letter case''' from '''"myFolder"''' to '''"MyFolder"''' (or any other possible option e.g '''"MYFOLDER"''',etc...), make sure to '''rename it first into an intermediary folder name''' with an '''extra character'''. For example rename '''"myFolder"''' into '''"MyFolder_"''' (adding underscore) and then again into '''"MyFolder"''' (removing underscore). That is because Outlook/Windows are case-insensitive while the email system is case-sensitive and Outlook does not cope correctly with it during folder rename... because he think '''"myFolder"''' and '''"MyFolder"''' are the same folder, consequently it does not command/instruct the server to modify folder name accordingly to case letter changes applied... creating a discrepancy that affect data sync... as the two folders (in Outlook and on server) become different... they don't sync any more with each other causing sync errors...

Revision as of 19:28, 17 August 2019

Make sure to follow this guidance when creating folders in Outlook, otherwise it might lead to sync issues of your mailbox data with the server.

e.g Send/Receive process never ending, new email not received promptly and/or email sent stuck in Outbox until Outlook is restarted, etc...

  • Remove any trailing space in folder name before creating it, for example don't create a folder "MyFolder " remove the space so it become "MyFolder"
    • Pay particularly attention to this when you copy/paste folder name from somewhere as it may be quite possible during selection or copy a trailing space may be added automatically, make sure to remove it after pasting prior creating new folder.
  • Avoid dual space in folder name. e.g "My Folder", remove the extra spaces so it would be "My Folder"
  • Avoid special characters in folder names e.g: '&',':','.'(dot),'..'(double dot),'...'(triple dot), etc... if you need to use a separator other than space, use '-'(hyphen) or '_'(underscore)... Limit folder names to alpha and numeric characters where possible. For example don't create 'Folder 2018 & 2019', instead create 'Folder 2018_2019' or 'Folder 2018 2019' or 'Folder 2018and2019' for examples...
  • When renaming a folder to change some letter case from "myFolder" to "MyFolder" (or any other possible option e.g "MYFOLDER",etc...), make sure to rename it first into an intermediary folder name with an extra character. For example rename "myFolder" into "MyFolder_" (adding underscore) and then again into "MyFolder" (removing underscore). That is because Outlook/Windows are case-insensitive while the email system is case-sensitive and Outlook does not cope correctly with it during folder rename... because he think "myFolder" and "MyFolder" are the same folder, consequently it does not command/instruct the server to modify folder name accordingly to case letter changes applied... creating a discrepancy that affect data sync... as the two folders (in Outlook and on server) become different... they don't sync any more with each other causing sync errors...