With recent upgrades to Exchange and Thunderbird I was expecting to be able to use my work (O360) account with Thunderbird. When I try to set it up however I am surprised to find that 0Auth2 is not an available authentication method in the setup of the SMTP server. Is this explicitly disabled somewhere or am I missing a dependency I am not aware of?
PS: I would include links to the announcements, but am disallowed from doing so for the moment. They are easy enough to find, though you may end up sifting though a lot of instructions on how to do the thing I can’t 
If you are missing an authentication form - you should discuss it upstream with Mozilla - Manjaro has no influence on the functionality of any GNU applications.
Exhange is a proprietary Microsoft platform - and communicating with Exchange servers is out of scope for this forum.
Of course you are right @linux-aarhus. The reasons I post this here are:
- Mozilla announced this feature May (I think) last year and it should be in the 68.* and 78.* releases
- Conversations with colleagues and tutorial screenshots using other operating systems show that this option is available elsewhere
Hence I was wondering if it could be something Manjaro/Arch specific.
Deleting and setting up the account again made the 0Auth2 option appear after a recent update:
Name : thunderbird
Version : 78.7.1-1
Description : Standalone mail and news reader from mozilla.org
Architecture : x86_64
URL : https://www.mozilla.org/thunderbird/
Licenses : MPL GPL LGPL
Groups : None
Provides : None
Depends On : glibc gtk3 libgdk-3.so=0-64 mime-types dbus libdbus-1.so=3-64 dbus-glib alsa-lib nss hunspell sqlite ttf-font
libvpx libvpx.so=6-64 zlib bzip2 botan libwebp libevent libjpeg-turbo libffi nspr gcc-libs libx11 libxrender
libxfixes libxext libxcomposite libxdamage pango libpango-1.0.so=0-64 cairo gdk-pixbuf2 icu libicui18n.so=68-64
libicuuc.so=68-64 freetype2 libfreetype.so=6-64 fontconfig libfontconfig.so=1-64 glib2 libglib-2.0.so=0-64 pixman
libpixman-1.so=0-64 gnupg
Optional Deps : libcanberra: sound support [installed]
Required By : None
Optional For : None
Conflicts With : None
Replaces : None
Installed Size : 173.49 MiB
Packager : Levente Polyak <anthraxx@archlinux.org>
Build Date : Wed 10 Feb 2021 12:55:16 AM CET
Install Date : Mon 22 Feb 2021 03:06:50 PM CET
Install Reason : Explicitly installed
Install Script : No
Validated By : Signature