Thunderbird Support Forum

I am encountering a peculiar issue with the "Reply to All" functionality in Thunderbird, which I believe may be a bug or an unintended behavior within the application. I hope you can provide guidance or a solution.

Issue Description: When I attempt to "Reply to All" to an email that I previously sent (which is the last email in a conversation thread), Thunderbird automatically alters the sender's address. Specifically, instead of maintaining me as the sender, it changes the sender to the one (or the first one, if there's more) of the original recipients' addresses. As a result, the email appears as if it's being sent by the recipient back to themselves. This messes with the recipient's folders and rules, as the message has no indication it's been sent by me. This happens when I initiate the "Reply to All" action from the Sent folder on emails where I was the original sender. This only happens in one of the email accounts I'm using in Thunderbird, and it's a POP Mail Server type account.

Steps to Replicate:

Send an email to one or more recipients. Go to the Sent folder and open the email that was just sent. Click on "Reply to All." Notice that the sender's address is automatically changed to one of the recipients' (typically the first one, if there are more recipients). Expected Behavior: The sender's address should remain as my email address, not change to a recipient's address, ensuring the email is correctly identified as being sent by me to the other recipients.

Troubleshooting Steps Already Taken:

Verified that no extensions or add-ons are causing this behavior. Checked for any relevant settings within Thunderbird that could influence this behavior but found none. Updated Thunderbird to the latest version available. I would appreciate any advice, solutions, or workarounds you can offer to prevent Thunderbird from automatically changing the sender's address in this scenario. Please let me know if there are any logs or additional information I can provide to assist in resolving this issue.

When send a calendar event to an Attendee list I get an email notification if they've accepted or declined but I cannot see the status in the actual event. I also cannot manually update the attendee status. I should be able to see attendee status in the event shouldn't I?

Using Thunderbird 115.10.1 on Ubuntu

Thunderbird suddenly stopped sending Emails. This message appears: "Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: csmtp3-prd-nl1-vmo.edge.unified.services csmtp3-prd-nl1-vmo.edge.unified.services Virgin Media has blocked your connecting IP 82.33.148.41 Too many bad emails have been sent. Visit https://netreport.virginmedia.com/netreport Section: Email Sending Errors to request delisting."

I have visited the web site, sent the report, and rung VM, to no avail. Window 10. Thunderbird v115.10.1. SMTP: Blueyonder smtp.blueyonder.co.uk Port 25 Authentication method: Password, transmitted insecurely Connection Security: None AVG anti-virus. I have used Therbird for 20+ years. Can you help?

I am using the current version of Thunderbird, I have been noticing for awhile now that changes I make to my profiles (adding new email accounts or changing smtp servers) are not being saved. In looking at my profile folder. I noticed several prefs-xx.js file but no prefs.js file. The last pref-xx file I have is from 2022 and it stopped at prefs-32. My question where did the prefs.js file go and how do I get it back.

Thanks Dan

1. Often TB won't show new message, it'll list a number of new message, maybe I can actually scroll down & view a few of them, but quite often, I'll try to scroll down and can't see that new message that TB indicates exists. Or I have to click on an old message, then try again, click on another message I've already viewed then scroll down to where the new message is. This morning, tried both several times, still couldn't see the new message that TB insists is there.

2. At one time, when you opened TB, you were automatically taken to the end of all the messages in your inbox or if you fllter emails to folders, to the end of messages in that particular folder. No more, you have to scroll down to the end. Why? It's a waste of time for me to do that and as far as I know, TB places no limit on the number of emails in an inbox so . . . why was that changed? Because it was user friendly?

In my search I noticed that there was one TB user who was so upset he/she/they wanted to return to v. 102. I wonder how many people, seeing the response, also have returned to a previous version. I know I'm really tired of getting additional bells & whistles i don't use, changes to what you see that don't help me at all, plus making using TB more of a hassle--see above. Please fix the above problems. If it's not fixed in the next upgrade--which I'm hesitant to install given the result of the last few upgrades that introduced the above hassles--then I'll probably go back to an older version too.

dear fellow users of thunderbird, is anyone experiencing the same problem?

I can send mails using thunderbird but not receive them; For some it seems the other way round. and my ruminations as to possible root causes may be way off I have two external mail accounts, one is just forwarding to the next and that was the address the inbox of which I presumed was being collected by firefox

Without having done any active change: For some time TB seems to not have passed on mails from my alternative mail account. I cannot seem to find the previously functioning gmx account in my settings.

For two days now I do not receive any mails at all. Apparently I can send them, though.

I restarted the programme and tried in safe mode, to no avail.

I am a simple creature, please advise or enquire in a manner an exhausted non-tech person may be able to follow.

hi all guys ... I'm experiencing several issues with oauth2 authentication, and I never had any issue before February the 2024 ... at the beginning the only account I have was not working was a microsoft account, so I thought it was "because of microsoft restriction"

but now, little by little, all my accounts requiring oauth2 authentication are failing, and I don't know were to check ...

I do NOT have any httpd/apache server running on localhost

I already tried changing things like general.useragent.compatMode.firefox or network.protocol-handler.warn-external.http network.protocol-handler.warn-external.https

I also created another blank profile ... but again ... not way to make it works ...

cookies are permitted ... javascript is enabled ...

the result is always the same ... a blank page when I try to do any oauth2 authentication ...

if I manually copy/paste that link in Firefox/Chrome it perfectly works, so it's not a network connection issue ...

from what I can understand, it seems to be related to the "built-in browser" in thunderbird, that for some reason does not work "as expected" ... If I try to click on any link for example in the settings page

like the "learn more" link of this option Send web sites a “Do Not Track” signal that you don’t want to be tracked "learn more" thunderbird does NOT show anything ...

something is broken, and I can NOT understand what it is ...

is there anyone with some good advices?

please let me know

thanks in advance

Stefano

I like to read, file, or delete my email when it arrives. Suddenly my inbox showed 18,642 unread emails! I've read them all, but I cannot figure out how to return my count to 0 without deleting each one individually. I don't know why this happened. Can anyone help me return my count to 0?

Hi,

About a month ago I accidentally activated the "Delete all but the most recent 2000 messages" option for one of my mail account in Thunderbird (15.10.1 (64-bit) on a MacBook Air). Luckily our local support were able to restore the affected folders. BUT - every time I opened the restored folders in Thunderbird, all the restored messages would disappear again. Correspondingly, the support team can see at this time large numbers of messages being deleted.

I've tried to delete the affected mail account from Thunderbird - didn't help. I've hidden my profile and started Thunderbird from scratch, set up the mail account again (so there should have been no leftover information from any previous instance of the account) - didn't help. I can see that whenever I open a folder for the first time, Thunderbird says "Compacting" - this is even though I have "Always ask before compacting" set. Even after I turn off automatic compacting for space saving >20MB, Thunderbird still compacts when it first sees a folder.

I have verified this behaviour by connecting to the same mail server using alpine - I see messages flagged for deletion in the restored folder; as soon as Thunderbird touches the folder, they disappear (even though no compacting should be happening and I should be prompted before it does, see above). Conversely, if I remove the "to delete" mark from the messages using alpine and then open a folder in Thunderbird, the messages are visible there.

From my understanding of what Thunderbird should be doing when compacting (or rather when not compacting), I would say the behaviours I've seen are rather significant bugs. But if I've misunderstood and there is some other way to stop Thunderbird from purging messages marked for deletion, I would be grateful for any advice.

Many thanks in advance for your help.

I am using TBird v115.10.1 and I need to be able to EXPORT my contacts to an Excel .CSV file. My version of TBird does not offer any customisation of the Export function.

I have 4 e-mail addresses and corresponding inboxes. One is my personal addy that I use for most legitimate business. The other 3 are leftovers from former businesses and a spam addy. I use those other 3 addys sparingly, but only for sites I want to maintain distance from, and any I suspect might be spammers.

Thunderbird has worked wonderfully for me for some years, but recently, I have been getting duplicate messages in 2 of my 3 dummy accounts for every one that is legitimately sent to my main account. None ever show up in that 4th account, but I did just receive an e-mail that was intended for that 4th account, and the inbox acted as it should (no duplicates anywhere).

I have spent a couple of hours with a very dedicated service rep from my ISP, and she was unable to find any solution. She suggests that reaching out to Firefox is the next logical step.

Tbird is close to perfect for me, so I regularly support it. One thing I do have occasional problems with concerns searching and using tags I hope I am wrong, but when I search for one or several emails I usually find them, but still have no idea of where they are located. The same applies to the very handy tags which I also gratefully use. I filter mails to appr 30 folders and archive them yearly, so actually finding an email can take some time. The path to the folder is not necessary - just the name of the folder would be enough to pinpoint it

yt / Joran Ahlback

I have been using Thunderbird for years. Always updated to the latest version. My current Thunderbird addresses are setup through Hostgator hosting and I've rarely had an issue. I recently set up a Zoho email address and added it to my Thunderbird platform so I can send and receive emails there. Problem is, when I send a test from one of my long time Thunderbird emails to the new email that goes through Zoho, it never shows up in my Thunderbird inbox. Never shows up in my Zoho inbox either. I can send from the new Zoho email to one of my established emails no problem using Thunderbird. But it doesn't work the other way around. I've checked everything I can think of--IMAP server settings, SMTP settings, added MX records, you name it. Not sure where the hang up is. Hopefully someone can help, thanks.

Thunderbird Version 115.10.1 on Windows 10

I wrote my own POP3 server and it largely seems to work apart from when Thunderbird tries to RETR the email messages at which point I get the error "Unable to write the email to the mailbox. Make sure the file system allows you write privileges, and you have enough disk space to copy the mailbox.".

If I drag a saved version of that same email that fails to be retrieved into Thunderbird , it can write it to the Inbox without issue. That means Thunderbird has permission to write to the Inbox file and so it is not a permission issue and there is enough space. I feel like it is more likely to be something I am doing wrong in my protocol implementation. For example, could I get this error if I misrepresented the octet count? Also I notice that even though my CAPA reply does not include UIDL, Thunderbird still seems to send that request and should get the response "-ERR Unknown command".

Output from my server showing what Thunderbird sent to it: CAPA USER person@mydomain.com PASS XXXXX STAT LIST UIDL RETR 1 QUIT

Any help is much appreciated, even if it is guidance on how I can debug it more thoroughly.

Thanks.