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In the Thunderbird windows menu list, below minimize and zoom, the message subject line is lost (says "Mozilla Thunderbird" only) for incoming messages, but not for replies. Where can I fix this? --- Using Thunderbird Desktop Version 128.8.1esr on MacBook Air M2 with MacOS Monterey 12.5

Opened Thunderbird today April 7, 2025 and the oldest email was from 2:58 PM April 6 2025. All my extensive collection of folders and old email have disappeared. New messages arrive in my inbox just fine. I suspect that there is a folder still on my hard drive somewhere with all the info in it. It appears that Thunderbird just can't find it for some reason. How can I help Thunderbird get back to using that file?

I RECENTLY DISCOVERED (BY ACCIDENT) EMAILS THAT WERE SENT TO ME (AND I TOLD THE SENDER WERE NEVER REC'D) WERE SITTING IN MY LOCAL FOLDERS/INBOX. I CANNOT HAVE MY REC'D EMAILS GOING THERE. IS THERE A SETTING TO MAKE ALL INCOMING EMAILS GO ONLY' TO MY "EMAIL ADDRESS"/INBOX?

Had issues with Comcast emails. They were set up with POP settings. Was on the phone with Comcast and uninstalled 3 email addresses and reinstalled using IMAP settings. I did not delete the message data leaving that box unchecked. After about 1.5 hours on the phone with Comcast was able to get the reinstalled Comcast email addresses to pull all of the emails off Comcast website. But there are emails that are missing from each of the inbox and sent folders for each of the 3 Comcast email addresses.

I do an incremental weekly backup using Acronis True Image 2020 Home Edition. I see the folders in the path but since they were saved last Saturday under POP settings, the backups I will need to try to recover are in 3 of the Comcast folders in the "MAIL" folder and not "IMAPMAIL" folder which listed 6 folders from imap.comcast1.net through imapcomcast6.net.

What do I need to copy from the correct Comcast folder called "Profile" where the izpoojy7.default is? Within this izpoojy7.default is the folder mail.comcast-1.net which has 1 of the 3 Comcast email addresses I need to recover the inboxes and sent folder emails. Please see the attached photo of the contents of this mail.comcast-1.net folder.

Do I just copy the Inbox.mozmsgs as well as the Sent.mozmsgs files? Or do I also need to recover more of the files within the respective mail.comcast-1.net folder? Thank you for any assistance you can offer on this matter.

When I am using UNIFIED Inbox in Thunderbird and I use the MOVE TO button at the top it successfully moves the message BUT after the move the MOVE TO button is greyed out and not selectable, so I can not use it again to move another email message to a folder.

Then I have to use the less efficient file menu "Message -> Move to" which works and then when the move is done, mysteriously the MOVE TO button UN-greys and is available for the 3rd message to be moved.

When I do the same thing in any "normal" inbox it does not exhibit this behavior.

Any help is appreciated in fixing this bug.

Hello, This has been an ongoing issue for me for many years. Whenever I receive e-mails from 2 friends who use AOL as their client, all the embedded meme and/or image files are converted into attachments, and what appears in the content text area is empty boxes. For example, I could get an e-mail about a photography opportunity with some typical photos of the scenery, etc. along with plenty of text paragraphs describing the specifics of this event. All the images will be as attachments. Now, it's there's only one or two such images, it's not too much of an annoyance, but many times there's multiple images, so now at the bottom, you have to scroll through each one, trying to fit it into where it belongs.

IF others send me similar documents who use other clients, Gmail,

etal., the image files are intact where they belong. Can you ascertain whether this is a Gmail/Thunderbird problem or does it originate with the AOL senders? Thank you.

Set up email list per instructions but get this message error .....TBBIGroup <TbbiGroup> is not a valid email address because it is not of the form user@host. You must correct it before sending the email

What did I fail to do?

Starting yesterday 4-3-2025 my Thunderbird email keeps locking up and saying it is not responding. I can close it and open it and then work with it for 2 or 3 minutes and it will start not responding again. This is a consistent problem the last few days. I did check and it said there was an automatic update on 4-2-25. I am not sure if this had anything to do with it but i did go in and request an update about 2 hours ago today. This has not helped as I still consistentaly get the not responding problem. Please advise what I can do to fix this.

Hello, in last times it going in my Inbox many Billings at Zugferd-Format. Zugferd is an German *.PDF Format with *.XML. Now i can open an Email with Billing in Zugferd, and the attachment as *.Pdf. I see the '.PDF. Wen i want to Print the Attchment *.PDF there comes White Paper as the Printer.

Wen it make an Download the *.Pdf, open with Acrobat PDF Viewer an Print ist all Ready only in Thunderbird i have Probleme with Zugferd *.PDF Print.

Hello again.

I asked this before but still it's not working.

Sometimes E-Mails shown in Thunderbird are missing 50% of the content (first 50%). Today 2 E-Mails got mixed up. So Thunderbird showed 2 E-Mails with the same content but different Subjects. So 1 was wrong. When I logged into my E-Mail Account then it was all ok there. So it must be a Thunderbird Problem or Server-IMAP Problem.

The Question is: How can I tell Thunderbird to re-download this email ?

I was told here this before: "right click the folder, select properties and then the repair button. Does that fix it?" Yes that does solve it but this mixes up the view in Thunderbird (columns are resetted), I don't want that.

Is there any way to re-download a specific email ? I really wonder why such a professionel e-mail program lacks such simple function.

Thank you Nico

Dear Sirs, When I move emails that I have sent or received normally to a local folder, I am unable to see the contents of the email at all, and I can no longer move the email back to the inbox to check. I would appreciate some advice on the cause and solution.

Our emails suddenly stopped downloading on to thunderbird on Friday 3rd April. The final one being at 17.31. We have been in touch with our broadband provider who say they are unable to help us and it is an issue with thunderbird. We haven't done anything to cause this to happen, they just stopped. Can you help us please.

I got a new PC with Windows 11. I installed Thunderbird, activated the private calendar, and entered events there. For events with a reminder that have a specific duration (e.g., Wednesday from 10 AM to 11 AM), I receive notifications. However, when I create a full-day event and want to be reminded, for example, 1 day before, I don't receive any notification. Additionally, events with a reminder are not shown in bold in the calendar overview (whether they have a specific duration or are all-day events). Can you please help me?

Until about a month ago, this was working perfectly: whenever I would delete an email message on my cell phone that action would be passed along automatically and update my Thunderbird desktop account.

And now it isn't working any more. So I have to delete unwanted messages twice. And I get a lot of messages.

Please tell me if you know of any system changes that may have cause this setup to stop working, and if possible, how I might restore this key functionality. Thanks!

Some messages do not appear in Inbox, and can not found by Filter (Ctrl-Shift-k). However, when I use Search (Ctrl - k): 1) They are found and 2) the Location is given as ... Inbox. These are recent messages.

How do I know they are there? I occasionally use a Webmail interface to access the account that Thunderbird is linked to and all messages are there. Also, when I get chided by others for not responding to their emails, I go looking.

I have tried Properties | Repair Folder on the Inbox.

Account | Synchronization and Storage settings are:

    Keep messages in All Folders on this Computer
    Synchronize all messages locally regardless of age 
    Don't delete any messages
    Always keep starred messages

Thank you for your consideration and suggestions.

Can Thunderbird provide a function to copy and paste a table or text as an image when editing an email, so that the recipient can directly view the content of the image.