Φόρουμ κοινότητας «Thunderbird»

I had Thunderbird installed on my Windows 10 computer and on my Android tablet. I noticed that some emails were not going. After hours reading posts on the internet I changed from POP3 to IMAP. Now nothing works. I uninstalled Thunderbird from both my laptop and the tablet and then did a download and reinstall on each. In each case I could receive email but now could not send. In the end I am uninstalled from both devices and loaded another product called EMclient. It installed instantly and properly on both the laptop and the tablet. I would like to return to Thunderbird, in spite of the fact that I lost a lot of emails in folders from a number of years of using the product, but would certainly like a lot simpler installation than what I experienced. Mozilla needs to look at other products and determine why they install so easily and Thunderbird is so difficult. I can't provide the version of Thunderbird other than the version for the laptop was the latest from mozilla's website and the version for the tablet was downloaded from the Play store in both cases this evening.

A previous answer to the question "how do I enlarge the font" in an email message?" suggested clicking on "View" and then on "Font Size". No such options are available to me in Ubuntu. What can I do?

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How do I deselect multiple folders selected it didn't happen until today and now I can't use thunderbird. There is no way to deselect multiple folder and I did not select that option need to move through different emails account and my local folder where I have emails sorted and I need this at I have emails pertained to forms I need to complete in order to submit request for pension. It work perfectly well yesterday prior to recent update. I need access to my emails

I tried to connect using my proton mail, with the correct credentials and mail, using IMAP (auto), but I received the same message: "No se puede iniciar sesion en el servidor. La configuración, el nombre de usuario o la contraseña probablemente son erróneos".

How can I do to solve this?

Descripción: ProtonMail Nombre del servidor: 127.0.0.1 Puerto: 1025 Nombre de usuario: pixxxxxxx@proton.me Método de identificación: Contraseña normal Seguridad de la conexión: STARTTLS

So long as I investigated, the problem is,

After version154, received emails in Japanese encoded by 8bit causes misconversion (mojibake). Emails encoded by base64 is not misconverted. Only 8bit encoded shows the problem. Version153.5 is no problem. Version154 and newer shows the problem.

Here are OK/NG by sender/receiver combination. Sender version154 8bit - receiver version154 - NG Sender version154 base64 - receiver version154 - OK Sender version154 8bit - receiver version153 - OK Sender version154 base64 - receiver version153 - OK Sender version153 8bit - receiver version154 - OK Sender version153 base64 - receiver version154 - OK

Emails encoded by base64 is OK, but some senders can encode by only 8bit. I cannot find how they can use base64. It would be helpful to know to use base64 encoding in version154 (or later).

However, the best way is that version154 (or later) can read 8bit encoded email in Japanese. I would like to thank anyone who help the problem.

I tried the automated setting up - several times but get the error message below, I tried changing the authentication but same result.

I tried the Help here: https://support.mozilla.org/en-US/kb/thunderbird-and-hotmail - but it didn't help!

I have the settings it shows for Outlook - but it doesn't work! When I "Continue" I get Authentication error. Show less

"Unable to log in at server. Probably wrong configuration, username or password.". It hasn't asked for a password.

I can login in to Outlook webmail and receive messages. Please help. I'm not overly technical but not totally ignorant either! Thanks, Isobel

Im not sure what the heck happened about a month or so ago, and I have still not resolved it. I did check on thing that was suggested to me, but it didnt really make much of a difference. After an update at about that time, my email folders I made appeared all wacky in the sense that some folders were grayed out, but still retained subfolders (with their contents) in them. I dont know what that means or why they are grayed out. I also noticed a bunch of folders named Userfolder with a number after that. They contain many emails in each one, like they were removed from the original folder they were in. So I dont know, for most of them, what folder I had them in. Im thinking I can try and match them to the grayed folder they might belong to, but not sure on where some go. I have no idea why this happened, and I have been trying to use Thunderbird since then. Im attaching a photo of what part of my Thunderbird, folders & grayed out folders look like. I just want to know how to correct this and get things back in order. I dont know if I did something in the settings or what. Plus this was over a month ago. Ive just been using my yahoo mail account on the web.

Thunderbird has been receiving emails on my PC from Bell Sympatico for years, then suddenly stopped in July 2026 without my changing any settings, and I have to go to the Bell server instead.

I'm using Thunderbird 153.5.Oesr (64-bit) on a Linux machine (Zorin OS).

Most of my email addresses use POP, but with a new email address, I decided to use IMAP. When I'm disconnected from the internet, that particular email address keeps checking for new emails and saying it can't connect. I don't WANT it to connect. A message pops up every few seconds or so and is very annoying. I need to unplug my ethernet cable/adaptor periodically, since it seems to overheat, so keeping it connected to the internet continually won't work.

I have un-selected the boxes in Server Settings to check for messages. See the images below.

Any ideas? Thanks!

First off, mucho thanks to Wayne Mery for kindly guiding me back where I should again ask this question. Here's a copy of the message I posted that Wayne responded to --

> Hi Kelly, et al, > > If this isn't an appropriate place for my question / comment / suggestion -- please advise how to do it properly. > > Several months ago, I had a brief exchange with Wayne Merry(?) in which I communicated that I was "certain" that TB was not showing me ALL (99.99%) of the emails I receive for my several hosted domains. I mentioned that I used to receive 20-30-40 spam messages everyday -- mostly in "junk" (not all). Then suddenly that stopped -- perhaps after upgrading to a new version. Wayne seemed little interested in my problem, but suggested I upgrade to a newer version -- which I resisted (just want a "stable" version that works) -- but I did -- to 140.17 esr. > > That upgrade made little difference (maybe one or two more). That is very problematic for my "business-like" use of TB. I live by email. My business card minimizes my phone # (landline) and mainly shows two big, prominent e-addresses -- my old original e-address from an evil ISP in ATL (druw@oneimage.com)-- AND above that -- my main e-address which is identical to the ISP, but with DRU added to the domain (druw@OneImageDru.com). > > I verified this week that a banker business contact -- sent to both e-addresses -- and I only received the one sent to the ISP e-address. Never received the one sent to druw@OneImageDru.com -- at all. This is similar to dozens of similar situations -- in which I never received any (expected) email -- and had to assume that -- just maybe that party never sent an email (not a lot of email lovers left). > > How can I SEE ALL (99.99%) email sent to my TB -- including seeing ALL spam sent to my TB -- just verify that there aren't any unintended NON-spam messages that are being mischaracterized as spam -- but are not? Is there a particular TB version that has potentially solved this problem? > > Any suggestions for running an other particular IMAP client (not deleting) -- to compare with what I get with TB? > > Merci, > > Dru

Hello Dru. You were close with the name :)

Through https://support.mozilla.org/en-US/user/druw/ I see you previous posting No longer see ALL messages, including spam after upgrade to TB 128.14 Oesr (64, Win 10) from 6 months ago and your older posting More "granularity needed" to "How to turn off Junk filtering / TB 115.10 from a year ago.

The description of planning at https://thunderbird.topicbox.com/groups/planning/settings indicates this group is not for bug reporting and support. The place for support is https://support.mozilla.org/en-US/questions/new/thunderbird. You will want to state that the problem is seen with version 153 or newer, and in Troubleshoot Mode https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird Thanks

Wayne

Current Thunderbird setup: Computer: Pop3 Phone IMAP

Until last week, I could leave the emails on my phone all day until I accessed them on the POP3 setup on my computer. That would remove the emails on the server and when I went back to my phone, it would show an empty inbox. Now, the emails do not clear out of my inbox on the phone, and I have to delete them manually. This happens on both the production version and the Beta version. Also, accessing via webmail, the inbox will be empty after accessing email on my computer.

Hello,

I urgently need technical assistance with a serious issue involving Mozilla Thunderbird and my professional certified email account (Aruba PEC, Italy).

I have been using Thunderbird to manage my professional email correspondence for several years.

I organize processed emails into yearly folders (2024, 2025, 2026, etc.), located under my email account in Thunderbird, not under Local Folders.

Today, October 13, 2026, I discovered that all emails dated January through September 2026 have disappeared from my "2026" folder.

Only emails from October 2026 remain.

The missing messages include professional correspondence, certified email delivery receipts, acceptance receipts, and potentially legally significant communications.

What I have verified so far:

The "2026" folder exists both in Thunderbird and in Aruba Webmail.

Both display the same remaining emails from October.

The Trash folder is empty.

The 2024 and 2025 folders still contain their messages.

Thunderbird's retention settings are configured to "Don't delete any messages."

The "2026" folder inherits the account's retention settings.

I did not knowingly delete or move these messages.

Aruba customer support informed me that they cannot restore the missing emails.

I checked Windows Previous Versions and OneDrive, but no backup was found.

I located the local Thunderbird mailbox file named "2026" in the profile's ImapMail directory. It is approximately 3 MB.

Inspection of a copy of this file did not reveal message headers from before October 2026.

I could not find another larger copy of this mailbox file in the Thunderbird profile.

I occasionally remove unused folders under "Local Folders", but I do not recall deleting any folder containing these messages. The affected "2026" folder is located under the IMAP email account.

My questions are:

Could Thunderbird have deleted or moved these messages automatically despite the retention settings?

Could IMAP synchronization, folder corruption, message filters, or compaction explain this situation?

Are there any additional Thunderbird files, caches, databases, or recovery methods worth investigating?

Is there any way to identify when or how the messages were deleted?

What steps should I take to prevent further data loss?

I have preserved a backup copy of my Thunderbird profile and would prefer not to perform potentially destructive operations.

This is particularly serious because the missing messages are part of my professional and legally relevant correspondence.

Any technical guidance would be greatly appreciated.

Thank you very much for your help.

Quick breakdown: I had my old boss's email loaded in Thunderbird for a short while Didn't want to be invasive after project ended Removed profile from Thunderbird Then Shaw and Rogers Merged - Sold email service too 3rd party Easy-On-Net Easy On Net dropped the ball and all of the historic folders and contents were lost when Shaw/Rogers severed their connection Can I recover up until the point I disconnected his old profile?

When I want to insert images into an email, I use the "Send via email" option. I am then prompted to "Select image size," after which I click "Attach." At this point, a Thunderbird window should open with the files already attached—but it doesn't. What am I doing wrong?

I used compuserve.com for email since more than 20 years ago when the internet is accessed by dialling in. However, compuserve.com is absorbed into AOL quite a number of years ago, and since then I have difficulty in reading my email via Mozilla Thunderbird. I need to login my compuserve.com account via the AOL website, and the mail files cannot be download to my computer for storage. I noticed in the web at the time that compuserve.com account users are complaining about the difficultly of getting the email via other email readers as well Is Mozilla Thunderbird has an update that can read the emails account in AOL or compuserve.com? My computer is using window 10, Version of Mozilla Thunderbird  : 102,0,3

Many thanks

Example why question is being asked:

Three separate GMX email accounts, each with its own unique password, and NOW Application-specific password for Thunderbird. Aliases are not used or desired. Three different separate accounts that should each have its own outgoing server.

Worked fine until updates to Thunderbird and changes to the GMX server, and Application-specific passwords became a requirement to send and receive email.

Seems like updates to nearly every program and/or app that may be released with the intent to resolve an issue or include a new feature breaks something else. M$ is horrible with updates and labels nearly everything as a critical update so it gets pushed through even when updates are turned off or supposedly permanently disabled by a registry hack; Windows 11 being the absolute worse ever. Why I only have one computer with M$ while all the others are Linux. Problems all the time with M$ while Linux simply continues to work.

Regardless, can setup each GMX account but the default email account name must be used as the user name on the other two GMX accounts on the outgoing server in order to send email. Then the recipient sees the name for the default account rather than the name assigned to the other two accounts, and the Application-specific password for Thunderbird must be changed to that of the default. Then attempting to pull down email for the other two pop accounts comes to a halt, and email messages can only be viewed by going to the online account.

Two separate accounts for yahoo, two for gmail, and one for Charter work fine, each has its own name and outgoing server. Should be the same way for GMX but is not because Thunderbird requires one of the three GMX accounts is set to Default.

Appears by having a Default email account, users are not only restricted by the default account, but email that is sent is done so with he incorrect name, The purpose for three different emails is for email segregation and better management; personal correspondence, business related, and Internet stuff.

Instead of having a 'Default' email account, makes more sense to use a valid email to register Thunderbird after downloading and installing, and then using that email for Support, Boards, assistance, etc. The default email requirement causes too many frustrating unneeded issues that should not occur, along with wasted time, stress and grief. Computers were suppose to make our lives easier and allow us more time for the real world. Biggest lie told since the Bell Labs created the transistor.

Thunderbird 158.0.1 (64-bit) Thunderbird codename Meadow badgeMozilla Thunderbird Flatpak en-USthunderbird-flatpak - 1.0

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