Thunderbird Community Forum

From the article "Microsoft OAuth Authentication and Thunderbird in 2024" there is a screenshot showing a OAuth2 option for the SMTP server setting with STARTTLS connection security. It does not appear for me. There are only the five options, as shown in the screenshot. How do enable the option to be available in the drop-down list or set it?

The available options are:

No Authentication Normal Password Encrypted Password Kerberos / GSSAPI NTLM

I am on Thunderbird version 115.12.1 (64-bit), Windows 11, version 23H2, build 22631.3737

Last week my TB stopped working all of a sudden, wasn't doing anything, no errors messages at all. I reinstalled it and it picked right up where it left off. Now today, I come in and again it won't work, but now it says it is because of my profile being for an older version.

How did my profile get updated to a newer version and since I just updated my TB to the latest version, why isn't it working now?? I tried to go back to the version from last week and it still doesn't work, but it also doesn't work with the newest version. I really need my profile to work and I'm really upset about this. Can anyone help?

We just signed up for a Microsoft email account this weekend. Preferring to use TB, everything seemed ok as I was able to receive emails just fine, but upon trying to send emails, I continue to receive an error message saying "Login to server smtp.office365.com with username tom@callablefirst.com failed".

I have gone through many different troubleshooting techniques I read about in the community and here is a checklist of things tried:

1. Checked that IMAP is toggled on in 365 admin 2. Checked that TB is accepting cookies and no exceptions are listed 3. Tried changing SMTP server to recommended instructions from Microsoft and verified all settings are OAuth2 4. Enabled 2F Authentication 5. Used config. edit to clear out all existing OAuth2.scope files

I have downloaded a different email client- eM client and everything works fine sending emails from that end so I am convinced this has nothing to do with my password being entered incorrectly, but some unknown conflict that isn't getting resolved between TB and the 365 account. I prefer using TB but am getting to the point where this is taking a lot of time away from other business activities that need to get done.

I have my marketing guy trying to remotely help figure things out, too, but he is at a loss as well.

Let me know if you have any ideas, thanks, much!

Hi. My iMac failed and I now have another. I've downloaded TB to it. In my dropbox account I have a profile backup folder which I'm hoping is what I need. Is there a set of foolproof instructions for restoring from the profile backup?

PDF attachments to emails are sometimes corrupt. They are not displayed when the email is opened (only a blue line is shown); after they are saved they cannot be opened (Adobe and also EDGE give a message that the file is damaged). The same attachments can be opened and saved correctly using the free Outlook application from Windows. I noticed the problem this month. The installed version of Thunderbird is Thunderbird 128.2.2 esr - but the problem also existed with version 128.2.1.

I have noticed a problem that could be potentially dangerous. I received an email with a PDF attachment. The attachment contained a number of filled in information in predefined preset fields of the document. When I opened the attachment, some of the fields did not show the filled information, the corresponding fields were shown as blank. When I opened the same attachment using the Windows Outlook desktop Application, all the information was displayed correctly. Changing the Action field in the Thunderbird settings under Datatype and Attachment to open the PDF with EDGE, the information in the attachment was displayed correctly again in the preview mode of Thunderbird. There seems to be a limitation within the PDF preview mode in case the standards settings are used: this should be corrected as it can cause serious problems, if important information is not displayed.

I found an interim solution to the problem of the corrupted PDF files by Thunderbird Nebula, as follows:

take Thunderbird offline - move the email with the corrupted PDF attachment to Outlook Archive folder - put Thunderbird back in the online modus - move email from the Archive folder to the Incoming Post folder

I get a message like this every time I start Thunderbird. The topic came up last year but the conclusion was along the lines of "...this problem will be fixed in version 128" but it was never clear whether or not the User followed Mozilla's support replies or what they had to do to clear the email message from Thunderbird. .....Well I'm running version 128.1.1esr and the problem still exists.

My questions:

1. What is Thunderbird trying to do? Compact individual email files? Compae from ct the whole Thunderbird Profiles folder?

2. Is the problem the size of the Profiles folder or the overall size of the hard drive the Profiles folder resides on? What is the Hard/solidstate drive is the maximum?

3. Is the problem related to the amount of Free Space left on the Hard/solidstate drive or is the issue the number of individual files?

4. Is the issue related to the number of Thunderbird files and/or folders OR is it related to the total number of files and/or folders on the hard drive?

5. Is there a limit to the number of sub-folder levels that Thunderbird can navigate?

Thank you.

Tom

Tom O'Brien TOBrienArchitect@gmail.com

I use SMTP settings

Description: smtp.office365.com Server Name: smtp.office365.com Port: 587 User Name: mypersonalaccout@hotmail.com Authentication method: OAuth2 Connection Security: STARTTLS

but TB is incapable of sending email. Either I got dialog https://software9119.technology/__other/tb/dialog.png or error https://software9119.technology/__other/tb/timed-out.png.

I tried cleaning cache and made some re+/search with no avail. There seems to exist some Authenticated SMTP but this is only available on Exchange 365 while this is my personal Outlook.com account.

Same question had Bill Swartout at 1/9/24, 2:30 PM with no answer, https://support.mozilla.org/en-US/questions/1423404#answer-1629472.

Hi, tbird 128.3.0 esr 64b w11p. A prob new to me. Only for MS outlook mail (aka office365 email, but no ofc365 on my laptop, just the email in tbird). -in unified folder view, my MS mail acct (it still has the "hotmail.com" address, but works), is not present -- that's the problem. A workaround is that I can choose both "unified" and "all" views together -- but while the MS mail acct now appears in the folder pane at the top, as well as in its own "place" at the "accounts" area below, that MS mail acct not longer has its messages appearing in the "message list" pane. I have to go to MS Mail's own place below, in the folder pane (as stated above),to see its msgs. in msg pane.

 I could use the "all" view, but it's not as nice & I never have had to choose that before this prob.

- I did run "repair folder" for MS mail's own inbox (again, below, in its own place below, in folder pane, accts). And I restarted t-bird.No change in behavior, unified view does NOT list my hotmail emails.

I have used & am comfortable w/config ed, but only when I have the proper instructions you may post in your potential reply (I am not a coder).

Please advise, thank you.

I was away from my computer for a few days and when I got back to it and tried to download emails, they wouldn't download even though they had done so prior to my absence. I have tried everything to get it to work to no avail as per "help" advice on community support - nothing has worked as yet. I am now at a total loss and extremely frustrated. Could you please give me some practical advice as to how to sort this out. I believe I have the latest update installed since the program tells me I do. I use Windows 11

Thanks Jenny

As of 10 October 2024 my Thunderbird account coupled with gmail exhibits the following symptoms: 1: Will no longer download new messages beyond 9 October. I get the message: Connected to imap.gmail.com 2: When sending messages I get the message: [Location] smtp.gmail.com:465 [Get Certificate] When I view the information, I get information as per the attached screen.

Could it be anything to do with the Win10 update of 9 October? Or/and Norton 360?

Thank you for your help.

Sid Katzen

Starting on 10/01/2024 Thunderbird no longer allows me to send or receive email.

When I try to read messages using Thunderbird, I get the following: Sending of password for user XX@msn.com did not succeed. Mail server outlook.office365.com responded: Logon failure: unknown user name or bad password.

When I try to send messages using Thunderbird, I get the following: Enter your password for XX on smtp.office365.com:

I have tried redoing the password and it does not help.

This is on a WIN/10 system. I updated to the latest version of Thunderbird and it did not help.

I checked out Thunderbird on my WIN/XP and get the same results as with WIN/10.

When I use Firefox and login to https://outlook.live.com/mail/0/, I can send and receive email as before. The same is also true with my Mobile Phone.

I just want to move the profile to an external drive. I can't download my google email because there is no space on the disk where it normally writes to. Thank you!

Dear community, I have recently updated my Thinkpad from kubuntu 22.04 to 24.04, which included an update of thunderbird to version 128.1.0esr (and a switch to a snap package).

However, when I type into the quick filter bar, (i) the whole thunderbird GUI freezes until the filter was applied to my several thousand emails, (ii) which also seems to take much longer than before. Before the update, the filter took maybe ~0.5 seconds or less, it now takes ~4 seconds. A lot for just a few thousand emails. Btw, the same happens if I empty the quick filter field. Just that it seems to take now even longer until it shows all of my emails.

I don't know if anyone can help. I feel more this could be something for a bug report?

Thanks a lot in advance, Matthias

Modern Authentication Methods are now needed to continue syncing Outlook Email in Thunderbird. I have changed my POP Mail Server settings for outlook.office365.com to OAuth2, but every time that I attempt to logon, the Microsoft Enter code screen is incorrectly displayed (see image). The necessary 'verify' icon is missing, so that whenever I input the required code from my authenticator app, nothing at all happens and then the connection fails.

There are two separate lines shown for inputting the code and this is also abnormal. Unfortunately, neither of them does anything and the same goes for the blank square box, or simply hitting the return key after the code has been entered.

It makes no difference if I delete my Outlook account from Thunderbird and reconfigure the relevant email settings from scratch. I have two Windows 10 laptops with Thunderbird 128.3 and the results are identical on both.

I cannot find a reference to anyone else having this particular problem with OAuth2 logins and would appreciate some help.

Microsoft suggested that I open Thunderbird Settings - Privacy & Security - Accept Site Cookies (checked) and then attempt the login step again. The box was already checked, so I cleared the existing cookies and made another login attempt. It was unsuccessful for the same reason as before.

NB. I have edited out my actual email address which was shown below the Microsoft logo in the image.

Thanks.