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TB will import but does not display either legible emails nor attachments. I suspect GM at is fault. The takeouts seem incomplete at Zip 11GB. There are 2407 emails in my simple GM account a few with always Adobe PDF legal document attachments. I am new to Thunderbird so that may be a contributor but it looks very straight forward. Perhaps I am a moronic 82? I represent 11,000 disabled Firefighters pro bono in UK and Ireland. Grateful for any help please...Paul

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.

Hello I use Thunderbird on Android before, and now how can I synchronize data on Thunderbird for Windows?

BTW, the reason why I need to do this is, recently I found the Android terminal just did not show new mails even if I refresh it manually. I also need this help though.

To be really useful to me I need Thunderbird to be able to read my Outlook pst-files.

For years my practice has been to move emails from the ost-file to the pst-file too limit the size of the ost-file. Both files are localized on my computer but only the emails in the ost-file are in my gmail-account. So the method helps me limit the size of my gmail-account but still gives me total access to my email-history.

Without a similar possibility in Thunderbird it's difficult for me to leave Outlook, which I really want to. Can you help me?

Hello, I apologize, I am uncertain if this is the appropriate place to post this topic. I am having significant difficulty with the forum system when we require assistance.

I have been using Thunderbird for over a year now, and I have wanted to stop using it since the first month of use. Several times a month, I am unable to send messages even though I haven't made any changes. The message keeps popping up: “The message failed to send. The message could not be sent because the connection to the outgoing server (SMTP) ”server name" failed. The server may be unavailable or refusing SMTP connections. Please check that your outgoing server (SMTP) settings are correct and try again."

This is supposed to be my work email. I understand that ThunderBird is a volunteer platform. And that you do what you can, but I can't afford to be stuck like this for a “yes” or a “no.” You were highly recommended to me by my website host, and I regret it. I am no longer in contact with that person, so I can no longer get the assistance I needed several times a month to get the mailbox up and running again. However, I continue to receive mail at that address.

Is there a way to automatically transfer emails from ThunderBird to Proton Mail? If so, how do I do that, please?

Thank you.

I upgraded from windows 10 to 11 My son was able to recover my e-mail folders, but some large folders are missing and the remainder only have e-mails from 2019 or earlier. How do I recover those e-mails? I am no longer conversant with the current technology or terminology. I need simplistic instructions.

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.

My old Arch Linux system with Thunderbird 145.0-1-x86_64 died. My RasPi and my new Pop-OS Meerkat both get 140.7.1esr (aarch64), and say they can't import my backups. I could see the RasPi ARM system getting a different Thunderbird, but the Meerkat is clearly an Intel processor. Why does it get the same version as the ARM based Pi? How can I recover my years of mail history? Both new installations say they are incompatible!

its coming from here [edited] @outlook.com mail to [edited] @mailthunderbird.com but its saying con not find them gave a q o code i don't have a smart phone you think every one have this phone ,

I have 5 email accounts stored in drive I: and 3 in drive C:, with multiple profiles (in I:(...)\Roaming\Thunderbird and \Local\Thunderbird AND the same in C:). (Windows 10). I need to move to a new PC (Windows 11), where drives are named C: and D:. I tried to use the Import/export function, but the accounts previously in I: don't appear (only the basic account shows, no inbox/sent, etc. and no data). I manually changed one of them to C: and then import again only the data. That was not possible for all the accounts and many emails (90%) are missing, also from the account were it "worked". I can find some emails in folders at the bottom of the account list, but many emails are yet missing, and received/sent not clearly defined. NB: on Windows 10 I have the latest esr version, on Windows 11 the latest NOT esr version.

So I tried to manually transfer the archives, but when copying from \Local\Thunderbird to an USB for the transfer, many files (more then 40k) went missing due to errors of copying.

What can I try?

Hi,

I need some help! Thunderbird used to have archive settings in which I could choose to save my e-mails locally in my archive folders with 1 file per 1 email and not everything that's in a folder saved to a single file.

How can I get this back? Is there some hidden settings that can be accessed to get it done?

I need every email in one file! I'm going nuts trying to sort years of e-mail duplicates. If I can have a file per message, then I can at least use my PC duplicate file program to compare file content and find the similar ones. But with everything of one folder in the same archive file I'll be cursed to have to manually go through thousands of e-mails by hand! So if there is a way to return the previous archive format (*wdseml files??, it seems?) then I want to know how to set that setting.

Alternatively a local folder duplicate e-mail cleaning tool? There used to be some but I couldn't get it to work now!

I want to be able to search my 20,000 emails if needed in the future. I have shut down the actual email account. I don't want to lose them. I do have other email accounts I am using Thunderbird for.

After reinstalling Sonoma (before I had Sequoia) and Thunderbird on my MacBook Air, I cannot find any emails from April 2023 to January 2026. I use the POP option in Thunderbird for my main accounts (the two from GMX). I have tried various solutions and requested support, but nothing has helped. What can I do?

Tried exporting profile folder again today. Somehow it was different. When I clicked on exporting it opened the profile folder and there were 2 profiles in there, one from 9-8 and one from 2023. I don’t remember seeing this before.

I clicked on the newer file and told it to export. It started, ran up to 50%, then stopped.

In the upper left corner on my screen, it said “Thunderbird not responding”. I don’t know why. It offered me an option to wait for Tbird to respond, or cancel the action. I opted to cancel even tho it said I might lose data.

When I did it asked me to put in the last dixc of the multi volume set. I have no idea. I’m out of the program now. None of this happened with the 2 exports I did before. And when I cleared the flash drive of yesterday's file, it had ) bytes of data on it. What do I do now? I have a lot of Tbird already set up, just need mailboxes and addresses, I think. Is there a workaround? Can I copy those items from the old desk top and paste them into the new lap top program? Thanks for your suggestions. Stacy

Hello, I have three profiles, and then a large number of sub folders in Local Folders. I would like to know how to transfer these Local Folders to Outlook. the profiles and their emails have all been transferred successfully.