Thunderbird Community Forum

Thunderbird is what Outlook was striving to be. It looks like Outlook, but out performs every thing I have tried. and it Works!!!!!!!!!!!! Cudo's Love this product.............................................................

Добрый день! В течение последних двух месяцев периодически пропадает возможность отправлять письма с моей учётной записи на gmail.com. Во вложении скан сообщения. Приём писем стабилен.

На учётной записи ya.ru этой проблемы нет

In our organization we have moved from an on-premise mail server to M365. We've also added our new EWS-based accounts to Thunderbird. Since there are a large number of users with a significant amount of older mails they want to have access to, they have been asking how they could upload them to EWS now.

We've noticed that either copying or moving messages from local folders to an EWS folder fails after some time. Has anyone encountered this?

From the TB diagnostics console:

08:32:44.651 Warning: Invalid absolute docBaseUrl: "x-moz-ews://outlook.office365.com/%CE%95%CE%B9%CF%83%CE%B5%CF%81%CF%87%CF%8C%CE%BC%CE%B5%CE%BD%CE%B1/6163?part=1.2&filename=%CE%94%CE%95%CE%9B%CE%A4%CE%99%CE%9F%20%CE%97%CE%9C%CE%95%CE%A1%CE%97%CE%A3%CE%99%CE%91%CE%A3%20%CE%91%CE%A0%CE%91%CE%A3%CE%A7%CE%9F%CE%9B%CE%97%CE%A3%CE%97%CE%A3%2004-%CE%9C%CE%91%CE%A1-2026.pdf&type=application/pdf". 2 pdf.worker.mjs:357:13 08:32:44.663 PDF 5df956e1527bf80c20efa2f3af9d8129 [1.7 Microsoft: Print To PDF / -] (PDF.js: 5.4.445 [ec5330f78]) 2 viewer.mjs:15734:13 08:42:07.645 TypeError: can't access property "ownerGlobal", navigatedWindow.windowRoot is null FormHandlerChild.sys.mjs:413:31

   notifyProcessRootOfNavigation resource://gre/actors/FormHandlerChild.sys.mjs:413
   onLocationChange resource://gre/actors/FormHandlerChild.sys.mjs:361
   #pushOrReplaceState resource://pdf.js/web/viewer.mjs:6460
   #tryPushCurrentPosition resource://pdf.js/web/viewer.mjs:6479
   #pageHide resource://pdf.js/web/viewer.mjs:6632
   closeTab chrome://messenger/content/tabmail.js:1128
   removeTabByNode chrome://messenger/content/tabmail.js:1146
   connectedCallback chrome://messenger/content/tabmail-tab.js:99

08:42:33.829 NS_ERROR_ILLEGAL_VALUE: Component returned failure code: 0x80070057 (NS_ERROR_ILLEGAL_VALUE) [nsIMsgFolder.firstNewMessage]

   onMessagesLoaded chrome://messenger/content/mailCommon.js:1198
   set searching resource:///modules/DBViewWrapper.sys.mjs:999
   onSearchDone resource:///modules/SearchSpec.sys.mjs:528

mailCommon.js:1206:19

   onMessagesLoaded chrome://messenger/content/mailCommon.js:1206
   set searching resource:///modules/DBViewWrapper.sys.mjs:999
   onSearchDone resource:///modules/SearchSpec.sys.mjs:528

All our systems are Windows 11 Pro rigs, domain-joined, with ESET endpoint security installed.

In our organization we have moved from an on-premise mail server to M365. We've also added our new EWS-based accounts to Thunderbird. Since there are a large number of users with a significant amount of older mails they want to have access to, they have been asking how they could upload them to EWS now.

From the looks of it, using TB one can either drag and drop messages from the local folders to EWS. Would message copy/move from the local folders be faster if the EWS account was setup over IMAP, instead of over EWS? If so, we could setup another account corresponding to the same EWS identity, but over IMAP, just for the purposes of transferring messages faster.

Thanks in advance for any information provided.

I had a Gmail address set up in Thunderbird on my old computer (Win 10). I had to get a new computer with Win 11. I have my Earthlink addresses set up okay.

But I've been unable to properly set up the Gmail address. I enter all the information, but the account vanishes from T-bird. All I have in Thunderbird is a Thunderbird Tab with Google info. It's a full page which might not come out clear with a screenshot, so I'm copying what's on this Tab ....

Google Account

   <- Mozilla Thunderbird Email has some access to your Google Account

Access you’ve given to Mozilla Thunderbird Email Mozilla Thunderbird Email has some access to info in your Google Account, including info that might be sensitive. You can always remove this access. Learn about the risks

   Access given on:  April 20, 2025
   Web address:    https://www.thunderbird.net

   Mozilla Thunderbird Email can:  Read, compost, send, and permanently delete all your email from Gmail -
   This app wants permission to do anything you can do in your Gmail, including:  (Read, compose, Add,       

ETC.)

   If you remove access 
   You might not be able to use some Mozilla Thunderbird Email features.

Another TBird Tab has: Keep track of your connection with Mozilla Thunderbird Email Mozilla Thunderbird Email has some access to your Google Account To use some Mozilla Thunderbird Email features, you gave Mozilla Thunderbird Email some access to your Google Account. This access might include sensitive info. Etc,

BUT I don't see the gmail email account itself. It had been with the other accounts, but it's not there anymore. PLEASE give me step-by-step instructions so I can access this gmail account.

Kami

Sent and received. Please notice the asterisks. Where do they come from? John

Message Sent: Fantasia I and II Georg Phillip Telemann 1681-1767 Kleine Passacaglia Michael Kuntz 1915-1992 Fair Phyllis I saw

Message Recieved:

• Fantasia I & II* Georg Philipp Telemann (1681–1767)

         Telemann’s Fantasias capture the brilliance and balance of the
         Baroque era—each movement a miniature world of counterpoint,
         grace, and invention.

• Kleine Passacaglia *Michael Kuntz (1915–1992)

          A modern take on a timeless form, Kuntz’s piece builds lyric beauty
          over a gently repeating bass figure. (See insert for more)

• Fair Phyllis I Saw* John Farmer (1570–1601)

Good afternoon.

When I receive emails such as password resets, or email verifications, etc., they always contain a line such as "click the link to verify your email", and they never display correctly like they do in other email programs, and I have to literally copy and paste the link in a web browser manually.

Is there a setting somewhere that I am missing?

For 2 years have been trying to get Thunderbird to access my mail from The Messaging Co. My old Win 10 laptop has no problem. My new win 11 laptop won't. I have configured the servers over and over but everytime I try to access Thunderbird I get "could not connect to mail server: the connection was refused". Who is refusing the connection? And why? I have re-downloaded Thunderbird several times but the problem persists. I am using Firefox. And using the in and out servers as per my win 10 laptop.

Created new yahoo mail IMAP (PKCE) account using Thunderbird account creation. All seemed to work well. However, new account does not receive mail from "some" other IMAP and POP accounts in testing, including from TB Pro. Strangely, mail sent from oldest POP accounts works. Mail from newer POP gmail and TBPro accounts is not received. TB 149.0b1 Windows 11

Hello Thunderbird Community Help!

After reviewing and implementing all the suggestions on the Mozilla/Thunderbird support pages and on the internet, I still cannot send emails from my office365 mail account from Thunderbird. I was able to send/receive email messages until about 4-5 days ago. From several different accounts on my laptop. And from two different laptops: one using Windows 10 and the other 11. Now, both will receive emails to their inboxes but neither will send a message.

I have the various set-up parameters set as recommended for SMTP using Oauth2, see below and the attached photo:

Outgoing (SMTP): Server: smtp.office365.com Port: 587 Security: STARTTLS Authentication: OAuth2 Username: Your full Office 365 email address

I have deleted the stored password hundreds of times. I have deactivated MFA with Microsoft. I have deleted the e-mail profile in question many times, and have re-created it using automated and/or manual configurations. And I have deleted stored passwords.

I keep getting this message:

"Login to server smtp.office365.com with username [my.email.address] failed." With three button choices: "Retry" "Enter New Password" "Cancel"

No luck with Retry or Enter New Password. They both result in a brief, failed re-attempt to send the email message, and a return to the previous message and choices.

Pressing "Cancel" results in this message: "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'."

Additionally I've reset my MS password several times. And MS seemingly is uninterested in having TBird/me login to my office365 account. I just get this response repeated over and over:

"Login to server smtp.office365.com with username [my.email.address] failed." With three button choices: "Retry" "Enter New Password" "Cancel".

I've spent a LOT of time over the past few days and over the weekend looking for a solution, but nothing so far has worked and I'm at my wit's end!!

Any help that you folks far more experienced with TBird can give me to get things working again would be GREATLY appreciated.

Best regards...

Tony

I updated to the newest version of Thunderbird. I was having problems authenticating the accounts I have set up (I was required to do this after the update), but finally succeeded. Two of my accounts do not show all of the folders that are in those accounts. The other accounts are fine. When I try to subscribe, the missing folders do not show up even after refresh. The folders are in the web interface for those two accounts, and also show up fine in my phone. I removed the accounts and re-added them, but the folders still do not show up. The two accounts (Frontier) are hosted by Yahoo. I also have a regular yahoo account and those folders show up fine.

Just reinstalled and re-setup Thunderbird. This morning, a window popped up on my desktop titled: Activity Monitor. Never seen this before. Did I turn on something to make it appear? Can I turn it off?

hi today thunderbird started showing yahoo popup login and after adding credentials i always get "something went wrong.We could not sign you in. Try again from a different device." Also popup once closed it opens instantly.

i can sign in normally from browser. thunderbird version is 147

is there any fix about this?

thanks for any help

regards

I have used Thunderbird for many years and and have loved it. However, recently my "Local Folders Inbox" have been extremely slow (deleting emails, reviewing an email, etc.). I have tried every suggestion that I have found without any change: reducing emails in the folder (down to about 75 remaining), compacting and repairing the folder, deleting and rebuilding all of the msf files and global database, disabling all addons, empty trash and junk, clear the cache, disable hardware acceleration, exclusion in antivirus, etc. It has become very frustrating. Any suggestions would be greatly appreciated.

TB on Windows

Prior to TB 148, OAUTH worked for POP3 access to: Gmail, MS Outlook, and Yahoo.

After TB 148 upgrade: OAUTH to Yahoo fails, subsequent log-in page also fails. Both OAUTH to Gmail and OAUTH to MS Outlook still work fine.

Rolled-back/Reverted to TB 147.0.2 -- OAUTH to all works fine, as it did previously.

Note: YahooMail seems to have other problems. But I was able to confirm successful OAUTH and POP3 to YahooMail after reversion to 147.0.2.

I have an outlook work email account in Thunderbird. Now I need to add another for a charity role. The first/work one is fine, but I can only receive emails on the second/charity account. I've tried different setting for the outgoing server but I don't really know what I'm doing with that - can you help please? Thank you.

There is currently no setting in the Thunderbird calendar for a recurring date on the "last workday" of each month. This is very necessary for certain recurring dates, such as payments issued online monthly on that date.

This function is included e.g. in the Nextcloud calendar app, but not in the Thunderbird mail calendar.

Is this something coming soon?

Thank you very much.