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Comment by GordonS | Hacker News Reader

I'm with you on this. I tried Thunderbird again just a few weeks back, to see if it could replace Outlook for me. Nope, but it's nothing to do with the UI, which seems... fine?

My issues were:

   - no support for O365, unless you pay for a 3rd party plugin
   - bizarrely high CPU usage, even when seemingly not doing anything
   - *sometimes* memory usage grows really high
   - a bunch of small niggling issues over missing features - for example, I can't paste in a formatted signature from Outlook

I'd much rather they focused on the above - the UI is just fine!

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> no support for O365, unless you pay for a 3rd party plugin

It seems that Thunderbird supports O365 oauth natively now, including access to calendars.

I know I had to use some plugins in the past, but now, it just works.

Hmm, I literally just double-checked before posting (with the beta version, too), and it still says it needs a plugin? Maybe I need to look a bit closer.

at the very least, check which version you're on. The auto-updater is one of the parts that's unreliable.

* https://blog.thunderbird.net/2023/01/important-message-for-m...

* https://office365.mcmaster.ca/reconfigure-mozilla-thunderbir...

If you've constantly upgraded over the years, try creating a new account or even reseting your profile. Perhaps there are/were some 'stale' settings that are messing things up.

I definitely used Thunderbird for an O365 account that required 2FA and so had to use OAuth, back to.... 2021 at least, I think. Though I think you might have had to know to change the auth method to OAuth to get it working, at least at the time.

Yeah, you can use Thunderbird with Office365 authenticating with OAuth2.

I have multiple 0365 accounts, have done for years, and don't pay for a plug. Not sure what's different with your O365 auth process.

Signatures are a pain.

I would add to that GPG just doesn’t work. They have support for it but if you try to use it fails to store any keys.

That hasn't been my experience at all. I used to use the Enigmail plug in which worked okay.

Since its deprecation and Thunderbird's integration of GPG, there were a few hiccups (mostly UI differences between Enigmail and native TB support), but none with key management.

I can generate, store and use keys without issue.

How does it "not support" Office365? No Exchange support?

Condolences on having to use O365, BTW.

Probably talking about

https://addons.thunderbird.net/en-US/thunderbird/addon/owl-f...

which is paid.

Can achieve feature parity with plain IMAP + TbSync but that's another 3rd party addon.

So "doesn't work out of the box with o365" isn't that big of a stretch, plain TB will only get you IMAP working.

That's honestly more of MS being cancer and not using standards than anything else.

They also introduced required OAUTH2 authentication last year and in a way that you need essentially org admin rights to give any other client than TB access... because you need to create fucking app in MS panels that then gets used by mail client to authorize you. It is entirely aisine platform

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