Thunderbird Community Forum

Hello,

This morning, I am unable to access any of my labels and folders. One solution I thought of was signing out and signing back in to see if it would resolve the issue. However, I am afraid that if I sign-out, will I lose my labels/folders created in Thunderbird? What would you suggest?

Moin,

die emailprüfung von G-Data Internet Security blockt Emails (rein und raus) aus Tunderbird.

Windows 11 Server: worldsoft (mail.worldsoft-mail.net)

Danke für Hilfe Hendrik

Recently, the Thunderbird email product quit working propertly. It requires me to log into the account each time I wish to open an email. This has been happening for the last week to 10 days. I have to reenter my password each time. Example, I open an email after logging in for the whatever many times it has been during the day, and I need to answer the email but need to get some information first. I go get the information and the email program requies me to log in again, even if it has been just a few minutes. This has not happened in the past. I have been using Thunderbird for a very long time, many many years and never had this happen before. I loaded the program on my laptop that I use when I travel or am not at home. Same thing happens with it.

This is highly frustrating and time wasting to have to do that. There is nothing I have found that shows me how to address this. My phone has a different email program and that does not happen when using the phone. And like I said, I have been using this email program for a very long time and have not experienced this in the past.

Is there access to a user's manual or some quick guide to help me with this? I am not a tech newby, but I'm not an IT professional either, which was why I choose using Thunderbird many years ago. It seemed user friendly at that time.

Thank you kindly for your help. Ken

I am being flooded with SPAM emails as of Jan 1, 2025. I mark them as JUNK and Mozilla seems to not understand they are junk and continues to fail to block them. Also, ALL of my incoming emails are now being delivered to the TRASH folder instead of to the Inbox folder.

I am having recurring problems sending e-mails, not knowing when it is going to work or not. The following message is one that I usually get:

"Sending of the message failed. An error occurred while sending mail. The mail server responded: <info@axxxxx.co.uk> recipient rejected - relay denied.

Please check the message recipient "info@xxxxx.co.uk" and try again."

I also get the following message when trying to send:

"Login to server mail.madasafish.com with username btom@madasafish.com failed."

These are my current settings:

Details of selected server: Description: btom Server Name: mail.madasafish.com Port: 25 User Name: btom@madasafish.com Authentication method: Password, transmitted insecurely Connection Security: None

I haven't changed any settings from the last time I was able to send e-mails, so I would appreciate any help.

SAB. Things were smooth for 7 years. Now with latest 430/25 TBird update and some 1 May 2025 phishing attempts through email, I cannot connect with AT&T. I can view my email on the connect ATT site, but cannot get the messages to download to the Tbird email client. AT&T claims that since I get the mail through their web page site, the problem rest in TBird/Mozilla??? Thank You A mozilla supporter, Dennis Giba, Westmont IL

The Subject Line is the first thing the recipient sees. So it's important that it be consistent with the message's text.

• I may want to insert an emoji

For example, the Subject Line may be humorous. "You take yourself too seriously". Insert a LOL emoji

• I may want to use a different font

The style of a font can suggest the theme or basic sentiment of the text.

Thanks for your help, SweetTasha

This questions is oft asked and answered, nonetheless, the answers include features I don't seem to have. Perhaps I am just not looking in the correct place.

I am told than once I am viewing the Address book, I can find "Export ..." and "Import ..." in the Tools menu (and that this is different from what one sees in when not viewing the Address book.

Not true for me. First, the Address book appears as a tab, just like and beside any open emails. Second there is no "Import ..." in Tools menu and the Export in that menu is the usual export of the entire profile, which includes the Address book in some form I am sure but not the form I need. See attached screenshot.

Seems I was able to do this in the past and the replies to others questions indicate it's still possible but try as I might, I can't find this feature.

If I am just being stupid, please be gentle in your response ...

Thanks, Tom Zeller

I have View > Sort By > Threaded turned on, but email threads do not show my replies as separate emails in the chain (like Gmail or Outlook).

I am not willing to copy/move all my sent messages to the folders in which I receive emails. I have 7 different email addresses I monitor and this would be... unwieldy, at best, and does not match my desired workflow.

When I click on an email with replies, the Conversation command in my toolbar goes grey, and even if it didn't, I don't want to open a new tab for the conversation. I want the email, and all replies (from me and the sender) to show in the middle/header pane.

What I'd really like is to make Thunderbird look as much like Outlook as I can, but that doesn't seem to be possible without more effort than I'm willing to expend - but a thread that was actually threaded would be a good start.

Any suggestions?

My Inbox showed no messages the last time I started Thunderbird (until Thunderbird started to download new messages). I looked on the C: drive under Profiles, and the Inbox showed 0 KB, when a backup from 10/17/2021, was 1.67 GB (1,753,217 KB). I am not sure how this happened. I think there were Thunderbird updates for a couple of days before I noticed the problem. I had been having trouble with Windows 10 updates, and saved files on an external hard drive on 4/20/25 to back them up, but by then, the Inbox file in my Thunderbird profile showed 0 KB. I am using POP to download emails. Is there any way I can get my emails back? Are they saved somewhere else? Thank you in advance for your help!

I am having a problem with my thunderbird email client. There was an update to the program over night and now when I load thunderbird it is unable to show me the content of emails in any of the folders. I can see the emails in the list and all the folders are shown in the folder tree on the left. Howevr I am not able to access the content of the emails. My thunderbird profile folder is on a network share, this fileserver is a windows based machine. If I copy the profile to my local machine the profile works correctly and I am able to open emails and view the contents. It is only when my profile is on the network that I cannot view the contents of the emails. I ran thunderbird in safe mode and this does not resolve the situation. I have tried to repair the folders but this did not work. I deleted the .msf files but this also did not work. I ran the thunderbird debugger and then tried to access an email, the debugger stopped on the follwing exception: NS_ERROR_XPC_BAD_CONVERT_JS: Could not convert JavaScript argument arg 0 [nsITreeView.setTree]. What could be the problem with my emails?

Emails from a number of emails are going into my junk folder that should not go into it. Even when I mark each email as "Not Junk", it continues to grab emails that it shouldn't. This has been going on for a long time and list of Non-Junk emails going into the Junk folder is increasing. I cannot find how to fix this any where on your website.

I am not a techy of any sort, so don't want to change any thing I shouldn't.

Maybe the easiest thing to do us just shut down the junk grabber. I'd rather do the choosing my self.

Thanks

Steve Powell

Dear All

Unfortunately Thunderbird crashed and deleted ALL my emails in my inbox, decades worth, and nothing in deleted folder. Same when checking on webmail. Sent, drafts, etc still have the emails present.

Oddly only some accounts were affected.

Please let me know if there is any way to recover the emails. This happened less than 35mins back.

Greatly appreciate any help.

FYI I tried the below but since missing on webmail as well I dont think this helps as when I check the file size is very small:

hunderbird stores your emails locally in a profile folder. Here's how to find it:

Open Thunderbird.

Go to: Menu (☰) > Help > More Troubleshooting Information

Scroll to "Profile Folder", and click "Open Folder" (on Windows) or "Show in Finder" (on Mac).

Once inside:

Navigate to: Mail > [Your Mail Server Name] > Inbox or for IMAP: ImapMail > [Your Mail Server Name] > Inbox

Look for files:

Inbox (no extension) – this is your actual email data.

When I downloaded Thunderbird, all the folders from my e-mail account downloaded; but, I could not move a message from the Inbox to a folder. Today, when I opened Thunderbird, all my folders disappeared. Please advise. Thanks, Dan

Hello, All of a sudden when turning Thunderbird on, I have found that all messages in my Inbox have gone ( except a few for last day or two). Looking around Thunderbird I have found all Inbox emails have bee dumped into my Trash folder! Please help - how can I get emails back where they belong and get Thunderbird back into working order? Very grateful for any help' Thank you, kindest regards Brian Benger PS where will I get your reply if my email not working??

I have sent pictures from my phone to two people and asked them to send them back, The email with the pictures dosent appear in my email. I can send and receive email from both people, just not the ones with the pictures.

Dear team

I am facing a strange problem while replying or forwarding the email using Thunderbird. It always seeps displaying sending message box. However, the message is actually sent by the Thunderbird. When I cancel, after several trials, the message box will go. Pl help. I am having this problem since version 115 and presently I am on Version 136.0 64 bit.

Screenshot is enclosed for ready reference. I have done clean installation also but the problem remains. Pl help.

I'm 65 years old and I've been using Thunderbird for 30 years as my main email client. Now we've reached version 138.01. I have realized that the true power of TB is the addons developers' community. Why I'm saying this? Because in reality TB out of the box does not offer any basic but fundamental functions. I'll explain myself. On every TB update there is only correction of code covering TB malfunctions as if Mozilla developers are unaware of users' needs. Now we have the new version but with these fundamental problems i.e. 1. Import/Export tools does no cover full backup/restore functions covering all folders including Local folders content. 2. Lack of internal function to remove the duplicates emails. 3. Lack of full language spelling correction tool when composing an event in calendar. 4. Lack of profile images for all incoming emails. 5. Lack of full functionality of search function ( similar to the addon Expression-Search NG) 6. Lack of internal mail merge function. 7. Lack of more exlicit rules for the creation of filters. Why we have to wait any developer to develop an addon in order to cover TB non existent functions? I'm really tired of waiting and it's time for me to get off TB train and turn to other email clients which respect users needs. This post expresses my disappointment towards Mozilla foundation developers and I dont' expect to receive any comments from other users. The only thing I would like to see is whether other users agree /disagree with my comments. Nobody would like to see that Thunderbird covers only the 0.21% of the market share of all email clients. Our expectations as users would like to see TB only to gain share and not to lose.

My thunderbird keeps popping up the "send message Error" . Please kindly check the attached photo. I push the OK. It will disappear. But it will pop up again in a few minutes. But acutally, I did not send the mail to the nominated Email address on the popping window. It keeps poping up my system. Could someone help me for this problem?