Thunderbird Support Forum

I am trying to setup an Outlook account on Thunderbird and I get an error: "Unable to log in at server. Probably wrong configuration, username or password." I have an existing Outlook account which I am able to use on the Outlook app on Windows, the Android app and the web version on outlook.live.com I wish to have an e-mail client on my Linux Mint machine from which I can access my Outlook e-mails. To do so, I went to the 'Account Setup' page on Thunderbird and used these to set up my account: Your Full Name: <My Name> Email address: <email-id>@outlook.com Password: <My Microsoft password which I use to sign in to Outlook> Under Manual configuration: INCOMING SERVER Protocol: IMAP Hostname: outlook.office365.com Port: 993 Connection Security: SSL/TLS Authentication method: OAuth2 Username: <email-id>@outlook.com OUTGOING SERVER Hostname: smtp.office365.com Port: 587 Connection security: STARTTLS Authentication method: OAuth2 Username: <email-id>@outlook.com

I am sure that the password I am using is indeed the correct password. I still get an error as shown in the screenshot on the Account Setup tab. How do I resolve this issue? Thanks a lot!

Back in 2015 someone asked about the fact that emails are not marked "as read" once opened but I don't think the answer was ever fully given. They were told: "This option has always been available and I use it. via Menu Bar Tools > Options > Advanced > Reading & Display or via menu icon menu icon > Options > Options > Advanced > Reading & Display select: 'automatically mark messages as read' Select: 'Immediately on display' click on OK When you select/left click an email in the list, it will auto open and display in the Message Pane below the list. If you use double click, it will auto open in a new tab or window depending upon what you selected. In bth instances the message will be immediately marked as read." Here's my problem with that .... I don't use the "Message Pane", I don't like it. I have my incoming messages set at "table view" and they are all just listed down the page by date. I don't want to see what's in the email until I actually open it....but, once I open it and read it when I close out of it the email still stays BOLD in the list....this didn't used to happen, once I read the email the BOLD went away. When I use the "automatically mark message as read immediately on display" then new emails are not in BOLD so I can't tell if they've been read or not. Bottom line, is there a way to have messages marked "read" AFTER they are opened WITHOUT using the message pane??

After last update, Missing "TRASH" folder and only have Junk Folder that everything is put in and marked as "Junk". Then those messages are all marked as "junk" automatically that may not be Junk. Tried to create subfolder named "Trash" and will not allow. Windows 10, 64 bit Dell laptop I-5 Inspiron 5759.

I opened Thunderbird this morning and there were no issues. Closed it and just now reopened and I'm getting this message: Thunderbird detected a potential security threat and did not continue to live.thunderbird.net. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

It downloaded 28 emails but will not let me see/access them.

Can anyone help? Thanks, Linda

For months I was experiencing the problem of "Thunderbird not responding" occasionally. It was a short duration issue (a few seconds to a minute). I reinstalled Thunderbird several times without success. I read almost every comment available online about this problem and I tried many ideas and recommendations I found without success. Most recently the problem became so serious that it was not a nuisance any longer. It was nearly impossble to work waiting for minutes to open an email or to continue typing while preparing a message and being interrupted by the problem I am describing. I ran Thunderbird in safe mode and determined that none of the add-ons is causing the problem. I turned the firewall OFF and determined that firewall was not causing the problem. I then decided to run Thunderbird in Offline mode and found that the program works normally. Then while in Offline mode I decided to download more messages and the program asked me if I wanted to switch to the Online mode. I said yes. New emails were downloaded and without going back to the Offline mode I was able to work normally without any occurrence of the "Thunderbird not responding" problem. I have been using this workaround for several days now. I download a number of eamails. I try working in Online mode and I cannot do it. I switch to Offline and work fine. I switch back to Online mode and I don't see the problem any longer for the whole day. Do you have any idea as to the origin of my proble? I am running Thunderbird 115.10.2 64 bit on Windows 11. I had the problem originally using Lenovo T490s and more recenlt Lenovo X1 Yoga

This has probably already been asked, but I can't find anything related to it. Ebay sends email from members that looks like "randomxyz@members.ebay.com". I would like to add the domain "members.email.com" so email from ANY member will be whitelisted and have remote content displayed. If this is possible, how do I set it up? Thanks in advance.

Where are by Thunderbird gmails stored? I am running two email server programs right now (Outlook and Thunderbird). Outlook stores gmail in the cloud and there are thousands of them, Naturally I do not want TBird to store all emails on my hard drive but I am told they are on my hard drive. If so this will eat up ALL my disc space. Where does TBird store my emails? If on my drive then how to I control how many are saved there and what will saved in the gmail cloud?

Hi,

I'm thinking about purchasing a Microsoft Surface Pro that uses the Snapdragon ARM Processor.

Will thunderbird run on windows 11 with ARM architecture?

Thanks, Dave

Hi, I have had Thunderbird on my Windows 10 laptop successfully for many years. Today I added a new email account, but then Thunderbird kept losing connection. I thought I'd try uninstalling and re-installing it, but now I get the message that it can't be installed on my laptop. Anyone know how I can get round this?

I sent an email with multiple BCCs and no CCs or TOs, I put myself as one of the BCCs.

I did not receive it and I do not think anybody else did as well since I asked a few people.

The email is in the sent folder. I tried forwarding the email from my sent folder to myself as CC, and that worked. I also tried fowarding as BCC, and that worked.

So what is going on? Is BCC working? How can I know for certain? Do I need to foward the email as BCCs to all my BCCs to get this to work?

Thanks for your help.

I am using TBird v115.10.1 and I need to be able to EXPORT my contacts to an Excel .CSV file. My version of TBird does not offer any customisation of the Export function.

MacOS Sonoma 14.4 seems to have broken a number of apps. AFter updating to Sonoma 14.4 I experienced a great number of crashes with Thunderbird, so I completely uninstalled Thunderbird and removed all traces of plists, Application preferences, everything, reinstalled Thunderbird, and added back the two email accounts I use with it.

It now takes up to 30 seconds to start up Thunderbird, after which it happily no longer crashes, but obviously the startup time is unacceptable. I experience the same problem with Typora, and the developers there informed me that they believe the problem is with a Sonoma change that broke WebKit. I don't know if Thunderbird still uses Gecko or if the new version is WebKit. Please let me know if other Sonoma users have reported this problem or if it's just my system.

Hello All,

I have recently installed Thunderbird email client which populated on its own and before I was asked for an address or Password! This may be by design which is not an issue as such. However, I noticed that none of my Laptop, WIN 10, Windows Live Mail subfolders were present.

I had imaged at some point I would have to import all my Folders and the emails from Window Live Mail using the importexporttools-3.3.2 program. I have also been made aware that sometimes the process would not be without errors. Nevertheless I forged ahead.

Unfortunately I have discovered there are odd emails missing. It seems I have two options to try and recover the missing contents. 1) To delete Thunderbird client altogether and fresh install, plus to import folders and emails again. Or 2) To repeat the import procedure by over writing, which will hopefully add the missing emails!

However, I have two questions, if I am able to over write. 1) Is it possible to repeat the import again? 2) Will the result be I end up with hundreds of duplicate emails as well as those missing emails?

Perhaps someone has experience of the outcome.

Thank you in advance.

My Thunderbird has been working properly for about 30 years, but now refuses to open. Message received says 'Authentication failed'. This happens repeatedly (for at least 20-30 times) and appears to relate to my password. It suggests 'Retry' or 'Enter new password'. The 'Retry' repeats as before so I check the Saved Passwords and enter the one saved. I get the same message. I am using Version 115 and have been for some time.

Could this be related to a change of Profile? There must be a way to reset the password? I have checked all the settings and no errors appear, all settings confirmed.

I have thought about a Recovery Mode and seem to remember seeing a message that I do have that. I just don't know how to access it.

I currently receive all messages sent to me including those from Comcast but I can't send messages to any email address. When I logon i get the message: Enter Credentials for my email address on imap,comcast.net. I read the document: Switch from POP to IMAP account > Create the IMAP account. I never saw the window shown on page 3 of the document. The other day I got a message that the IMAP account was already created. I then edited the my SMTP account.