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I am not receiving email sent from a company I do business with. I have Thunderbird.

How do I find my White list and black List to make sure it is on the White list and not on the Black List?

How do I get my email to accept it? Thank You

Hi. How can I know the correct format for Thunderbird Message Summary File (.msf)? I want to use exported backups emails y I'd like to know how to get every .eml from the .msfs generated by Thunderbird.

Bonjour, Thunderbird/ Windows 10 home /64bits 1 Depuis 2025/03/15 Envoi de mail impossible (réception OK) 2 J'effectue 2025/03/17 une restauration de Windows au 2025/03/12, date du dernier message envoyé sans problème. 3 La restauration dure plus de 6 heures ! mais j'ai un pop up Microsoft qui confirme la bonne exécution. 4 Je vérifie le fonctionnement général : Internet OK, profil Thunderbird OK, Points de restauration antérieurs au 2025/03/17 disparus; compte tenu de la durée exceptionnellement longue de la restauration je pense que windows a dû procéder à quelques réparations..il semble d'ailleurs un peu plus "agile". 5 J'effectue une double sauvegarde de mes données (profil TDB inclus), au cas où... 6 Je démarre Thunderbird , ECHEC !; message "Couldnot load XPCOM".

Je propose de désinstaller TDB puis de le réinstaller; qu'en pensez vous ?

MERCI d'avance

I want to get rid of the spam and archive folders, to free up real estate. I can specify that I don't want anything archived, but that doesn't get rid of the archive folders. I can undo the default adaptive spam filtering and set up my own "delete" filters, but I don't know how to remove the spam folders from my edresses. Are there ways to do this? I prefer the older design, though I understand that some users want those folders.

I am having issues adding att email to Thunderbird. I input my email account info and it comes back as a good account. Then I hit continue and after a few minutes it states the username or password is incorrect. I even changed the protocol from POP3 to IMAP and it won't let me.

Thunderbird has pretty much disappeared from my iMac, and I cannot find a way to solve this problem. I've restarted Thurnderbird multiple times and restarted the iMac. It came out of nowhere, and I do not know what to do. I've attached a screenshot with the screen that pops up when I open Thunderbird. None of the dropdown menus work, and I cannot access my years of email. Help!

I haven't used my Win 11 laptop in a while. I started it up and let Thunderbird run. It had several months of emails to download, but has now stopped at early March. I asked it to continue and get a message "Unable to write email to mailbox. ....." I know there is plenty of space on the harddisk. I cleared out a lot of the junk emails from earlier months and emptied the trash. Rebooted. Updated to latest version 128.8.1esr. Still same error message.

When Tbird first began it was easy to see which folders were Imap and which were local. That distinction disappeared a while back and I still had all my imap folders but no indication of which were which. When I want to access them the popup menu did show "gmail" (since that is my email domain) and the imap folders there. But when I go to create a new folder it does not show up in the imap list even though I want it to be an imap folder.

How do I create/manage an imap folder in the current Tbird?

Number 1: I have filters that work on new messages that come in but I still have email in my inbox that the filter is not moving to the designated folder as defined in the filter. Is this due to some setting? I use Thunderbird for multiple gmail accounts. Need help because I have a huge inbox and it needs managed into multiple folders and I can't seem to get it to work. It worked one time in the past but I am not sure why it doesn't now.  ???

Number 2: Does the retention policy for a folder actually send a delete instruction to the server? I want to know how I can do that so I am actually deleting messages at the server as well. What all info do you need?

Hello all:

For the last few months, I've been having some issues with frequent lockups while accounts update. I'm now having issues with indexing, and being able to search and find messages. According to the activity screen, indexing freezes around 97% on the Inbox of my main gmail account (~17,800 messages total in that inbox, indexing stops around 17,300 and hangs).

Version: 128.8.1esr OS: Windows 10 Accounts: 4 all IMAP (2 gmail) Largest inbox: about 17k messages

Troubleshooting done: 1. Repaired folders 2. Rebuilt global Index 3. Removed All mail from sync 4. Excluded antivirus (Windows Defender)

Is there any way to find the email is causing the lockup? Any other suggestions?

I have not been receiving all incoming messages. they are not in my spam. It shows up that I have read them to others. My assistant is now checking my email and he sees the messages, but I don't seem to have them anywhere. I am getting some messages so it is not universal. It has happened with several urls. What is possibly wrong and how do I fix?

thanks for the help!

After the latest update I noticed a syncing issue. I have thunderbird on my imac and I also check my email with my iphone using iphones mail program. I am using IMAP. What happened after the update is when I delete a message in thunderbird it doesnt delete from the mail server, so it still shows in my iphone. If I close out of thunderbird it then removes it from the server. Everything else is syncing correctly, like showing a message read or not etc. Just the deleting doesn't happen till thunderbird is closed. Am I missing a new setting that has to be changed now? I have used Thunderbird for my email since the start and this is the first time I have had an issue. Thank you

Hello, I stopped seeing sent emails in Thunderbird v. 9.0, Android 14. The email is sent, but not saved in the sent mail. Sending emails via computer (Thunderbird) or after logging in via the web interface works, emails are saved in the sent mail. The problem is only in the mobile application and only for 1 account. The other 2 accounts (gmail and center) work without problems, emails are saved in the sent mail. I tried changing the server settings for sent mail in the given account - without success. Has anyone encountered a similar problem? Thank you

I sent a message with 2 large attachments, which came to about 700kb. I have my email account configured to move replies to the original message folder after sending. The sent message appears blank in the folder. View source reveals little but starts with the following: X-Mozilla-Status: 0001 X-Mozilla-Status2: 00000000 IesvbLYCv+2WRXVrCMCm89IOemygPZpNbz2NBY [and so on for 433 lines of 73 bytes], < 32kb.

When I use my online webmail interface, the message that Thunderbird can no longer read is intact, legible and contains both the large attachments. The same is true when viewed in another email client. I have restored the message by exporting it from the webmail and importing it back to Thunderbird (to keep my records intact), which Thunderbird handles okay.

The outgoing mail server log shows that the message received from Thunderbird and sent to the final recipient was the correct 700kb+ size.

I'm rather curious as to what went on there.

Attachments to post: 1. View of the corrupt message in the Trash folder 2. Intact message after importing as an export from webmail.

Before switching to Thunderbird, I used a VBA script in Outlook to redirect/resend emails if the recipient hadn't replied by a set time and date. The VBA script and instructions can be found here. Is there a Thunderbird add-on that can achieve similar results?

Will you please add Local Folders to Android Thunderbird? I use desktop Thunderbird mainly to import mbox files into Gmail (which happily exports them by Takeout) so without Local Folders the Android app is useless for me.