org-msg VS orderless

There is also org-msg as another option (haven't tried both so can't compare).

org-msg replaces a lot of message composition behavior, so it's not a big surprise that it doesn't respect that variable. Make sure you're referencing org-msg's README while customizing it.

Funny, just dealt with the whole O365 authentication just this week. With moving to 2 factor authentication you need to use OAuth 2 to do anything with it. I have my (work) O365 email forwarded, so I do have normal IMAP access. I use isync/mbsync [1] to receive email, goimapnotify [2] to get pushed new email, read/reply/etc with mu4e [3] and org-msg [4] and org-mode, and until recently just plain SMTP to send mail. This last part will break with 2 factor, but found oauth2ms [5] to set up the OAuth to work with O365 SMTP. The trick was to find the "tenet ID" from the Azure page of your organization and to use Thunderbird's credentials [6] (or another mail program, since I can't make new app registrations on Azure to have my own "application"). That should also allow you to use IMAP with OAuth 2 as well, but haven't done that since I still have the forwarding. (As usual, I think the Arch Wiki [7] covers most of this too.)

[1] http://isync.sourceforge.net/

[2] https://gitlab.com/shackra/goimapnotify

[3] https://www.djcbsoftware.nl/code/mu/mu4e.html

[4] https://github.com/jeremy-compostella/org-msg

[5] https://github.com/harishkrupo/oauth2ms

[6] https://hg.mozilla.org/comm-central/file/tip/mailnews/base/s...

[7] https://wiki.archlinux.org/title/Isync#Using_XOAUTH2

I'm using org-msg like this (great package btw, doesn't get enough attention if you ask me):

https://github.com/jeremy-compostella/org-msg/issues/1#issuecomment-426415584 is one of the things which pushed me towards org-msg.

orderless. A highly configurable completion style that matches multiple patterns in any order against minibuffer completion candidates.

An example relevant to your list would be some changes many people are taking with their completion framework - using package that leverage core emacs functionality rather than replacing it with a complete package that 'overrides' it. Consult, vertico, orderless and associate packages come to mind here. If you do a bit of a search you'll find plenty of info. Here is a video from Prot on the subject, but there are many others as well. I think Prot actually went on to write his own completion system to overlay native emacs functionality as well.

You didn't mention, so I'll ask, are you using the orderless (https://github.com/oantolin/orderless) completion style?

Fuzzy completion ala Orderless would be awesome: hitting space during completion acts as a pattern separator.

I dunno—I like how Vertico+Counsel feel. I'm not sure how good the support for Orderless and Embark are in Ivy, but I really like how those packages compose so nicely with the Vertico+Consult ecosystem.

In general, you want either orderless or prescient, with my personal preference being the former.

You probably want to investigate completion styles. There are many builtin styles, from basic, which just does prefix completion, on up. But there are also 3rd party styles. One of the most powerful is called orderless. Considering all these styles, there really is a ton of flexibility in how you can get to a completion candidate like some-named-something (some, s-n-s, sns, soso, [a-z]{4}-na, e\b \bs, ...). You can even configure more than one style at a time (and usually do).

Well, I've written some general purpose Emacs packages (orderless and embark) that I use a lot, but I also write Emacs Lisp for one-off tasks.

I like it. Would be nice to see orderless-style (https://github.com/oantolin/orderless) completion, and a config not to enter the directory by narrowing the completion to one, requiring enter to be pressed.