Tip: Getting Threaded Conversations Working Consistently Across Your Desktop Outlook Mailbox

Here are some notes on how I've got Outlook set up to make my work mailbox a bit more manageable. Most of these things are probably officially documented "somewhere", but it's nice having a quick guide for getting a setup that seems more sane (for anyone coming from Gmail)

 

This post comes about because, while I had this working in my Inbox, I found that this was not the case for my other folders once I moved threads there. Hence my search for answers. 

Short Instructions  - For Enabling Threading on "Other" Folders (see image above):

1) Go to one of the affected folders
2) Go to "View" tab on Ribbon
3) Enable "Show as Conversations"
4) In the confirmation prompt, click "All Folders" (vs just "This Folder")

I suspect I'll have to go in and redo this for any new folders I add at some point in the future. But at least this gets all the current ones working nicely.

Bonus Tip:  Fixing the need to triple-click on the annoying little triangles to collapse threads

Make sure you've got that "Always Expand Selected Conversations" thing from that menu selected, which fixes that problem (it seems).

Oh, and you need to do that per-folder... unfortunately, this case doesn't show the handy "change for all folders" popup.