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If your school or workplace uses Exchange for email, accessing it with Thunderbird just got easier! Our blog post has all the details on getting connected. Additional features, like calendar and address book, are in the works!

#Thunderbird #Exchange

blog.thunderbird.net/2025/11/t…


Thunderbird Adds Native Microsoft Exchange Email Support - The Thunderbird Blog

Thunderbird Exchange support has finally landed for email in the latest monthly release. Find out what's in, out, and still on the way.
Heather Ellsworth (The Thunderbird Blog)
#thunderbird #exchange
in reply to Thunderbird: Free Your Inbox

eons Luna (Eonity)
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eons Luna (Eonity)
• •

Any idea when Calendar and OAuth support for Exchange accounts will be released? Been waiting for full Exchange support in Thunderbird for quite a while.

I will be able to dispense of the TBSync add-on once that happens.

in reply to Thunderbird: Free Your Inbox

Jeff
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Jeff
• •
Will we be able to access shared inboxes? I have to departmental inboxes that I need access to. Currently I can access them with the Owl add-on extension.
in reply to Jeff

Thunderbird: Free Your Inbox
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Thunderbird: Free Your Inbox
• •
@cynical13 Not yet! This is something that's still in development, so you'll want to keep using OWL for the time being.
@Jeff
in reply to Thunderbird: Free Your Inbox

Jeff
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Jeff
• •

Thank you for responding!

I hadn't seen it on the list, but I wasn't sure if it was listed under something I missed or it was called something else.

in reply to Thunderbird: Free Your Inbox

Ray McCarthy
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Ray McCarthy
• •

I was setting up TB with Exchange up 20 years ago, if I couldn't migrate them to a saner mail server. Nice it's now built in.
The big problem with Thunderbird is that Mozilla has progressively wrecked the UI; now it completely ignores the OS style/theme.
Plugins killed off
Account Interface much worse than it used to be.
More awkward to migrate content to a new install, with the annoying 1st time Wizard.

It's much harder to use a Gmail account, but that's Google's fault.

in reply to Ray McCarthy

Thunderbird: Free Your Inbox
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Thunderbird: Free Your Inbox
• •
@raymaccarthy Hey there, and we're sorry for any frustration with recent changes. We're working on integrating the desktop apps into native OS notifications, though we do only have one app for all 3 operating systems as we're a small team! We have a team member who is also an Add-on developer helping others update their add-ons, and we want to find other ways to support our add-on community. And we're definitely improving the Account Wizard for a better experience.
@Ray McCarthy
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Ray McCarthy
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Ray McCarthy
• •
I don't care about "integrating the desktop apps into native OS notifications" There is a way since for ages to have notifications on Linux Mint + Mate.
The last sane TB was way before 91.9.1 which is one of the last to able to use OS Theme.
Accounts GUI dumbed down for years.
Account setup blocked by pointless wizard for years.
Using TB since about 2004. Email on Windows since 1994.
Lots of add-ons disabled years ago by pointless changes.
Option to disable Account Wizard at start!
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Ray McCarthy
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Ray McCarthy
• •

It's not recent changes. It's been worse on every release for years.
Even Thunderbird 11.0.1 on XP was better than 91.x which is better than current. I have a few Linux Mint + Mate with current Thunderbird. Updates blacklisted on other machines.
Oldest Windows archive is 1.5.0.7 and Linux is 1.0 (probably on Red Hat or Suse or Debian).

I did Windows & Linux programming in C, Pascal, Modula-2, C++, Perl, Java & C# for years.

Mozilla on Firefox & Thunderbird ignoring OS.

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CKA
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CKA
• •
Great News. Microsoft is making Outlook worse each day and this could be the push to give users an easy way out
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Linus Kardell
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Linus Kardell
• •

> Microsoft has stated that EWS will continue to be supported for the foreseeable future,

The link seems to contradict that:

>on October 1, 2026, we will start blocking EWS requests to Exchange Online.

in reply to Linus Kardell

Thunderbird: Free Your Inbox
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Thunderbird: Free Your Inbox
• •
@LaggyKar EWS will continue to be supported for Exchange on-premise mailboxes for the forseeable future. (techcommunity.microsoft.com/bl…) But thanks for the feedback on the wording!

Retirement of Exchange Web Services in Exchange Online

Update 3/27/2025: We updated the "Access to public folders" section below. This post is a part of our EWS (Exchange Web Services) to Microsoft Graph Migration Guide Series.
The_Exchange_Team (TECHCOMMUNITY.MICROSOFT.COM)
@Linus Kardell
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Dmitri Goosens
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Dmitri Goosens
• •

I have really got mixed feelings about this...

on the one side, it's pleasant that my favorite mail client finally handles that b***y exchange...

on the other hand, I have been using and paying for the excellent OWL plugin for years and have been very happy with it... this TB update does mean the end of this project (services.addons.thunderbird.ne…)


Owl for Exchange

Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).
services.addons.thunderbird.net
in reply to Dmitri Goosens

Thunderbird: Free Your Inbox
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Thunderbird: Free Your Inbox
• •
@dgoosens OWL will definitely be needed in the interim for address books and calendar support, and the developer of OWL hasn't made any announcements about discontinuing the add-on.
@Dmitri Goosens
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Bill Taroli
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Bill Taroli
• •
I can’t wait for the full stack support! It never happens as quickly as our little hearts desire.
in reply to Bill Taroli

Thunderbird: Free Your Inbox
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Thunderbird: Free Your Inbox
• •
@btaroli We know everyone will be anxiously awaiting Calendar and Address book, and even if they might not be coming as soon as you hope, we'll keep everyone posted here on our progress!
@Bill Taroli
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