Thunderbird Support Forum

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.

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.

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 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?

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

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.

Collecting mail one day, I received a Thunderbird message 'compact now'. After the compact process, some mailboxes are missing. How do I re-instate these deleted mailboxes?

I am having older Thunderbird 102.13.1 and when i input into a search field for example: 37.19.223. or "37.19.223." or "37\.19\.223\." it always stupidly and uselessly output tons of messages that contains unrelated IPs:

([76.223.177. [10.223.144.96]

highlighting number 223 as if i have searched just for this number 223

I think that it is reasonable to expect from TB to output only search results where email contains 37.19.223. without any hack, escaping or regex or whatever (if you know a workaround, please kindly share it).

Maybe newer TB works better? Anyone tried? If it works same way, can you please kindly ask developers to fix this?

Here's the technical details: Win 10 Home 22H2 Build 19045.4291, Mozilla TB Thunderbird Version 78.4.0 Build ID 20201019003438 Distribution ID Update Folder C:\ProgramData\Mozilla\updates\8216C80C92C4E828

This AM I was able to check / get e-mail five (5) or more times. Then clicking 'Get Mail' displays; connecting to mail.duo-county.com After 15-20 seconds connection to server mail.duo-county.com; Timed Out

I know of NO changes to any setting. When our e-mail was set up, we were told to set we were told to use Pop-3. Our ISP, who does NOT use NOR 'know' TB said we should be using IMAP, could NOT help review nor doing anything without risking ALL folders - files-data!

PLEASE help ASAP. Since we can't get - check mail I'm LOST! My spouse's e-mail is wpj@duo-county.com

Thunderbird 115.10.1 64 bit on windows 11. 24.4.2024.

Question: How I can access shared folders in Thunderbird?

Office 365 business. I can access admin portal etc:

portal.office.com/adminportal

And also I can go to Exchange admin portal via this. So, in my opinion I can use all deep settings also.

Office 365 licenses (full) for name.lastname@company.fi. Portal show "Office 365 business standard".

I create also shared folders. Today shared folders found from "Teams groups". Log in to portal.office.com/adminportal, "Teams-Groups", and then "Shared mailboxes".

My conf: Office 365 business standard found name.lastname@company.fi. ("john.smith@company.fi", "alice.brown@company.fi" as example.)

Shared mailboxes sharebox1, sharebox2, so, it is possible receive email sharebox1@company.fi, sharebox2@company.fi etc. (in real life share box names are bookkeeperteam@company.fi, orders@company.fi, helpdesk@company.fi etc etc.)

CONFIGURATION IS FULLY WORKING. It is, in Outlook it is possible receive and send emails, shared folders with messages are available etc.

------ 

HOW I can add shared folders to Thunderbird? Clean install tested.

1. LIcenced mailboxes work properly in Thunderbird. Tested.

name.lastname@company.fi:

Server: outlook.office365.com, port 993 Username: name.lastname@company.fi Connection security: SSL/TSL Auth: OAuth2

And smtp: smtp.office365.com, 587, starttls, oauth, name.lastname@company.fi.

This configuration work properly, and it is possible receive and send email from Thunderbird.

SHARED FOLDERS

It is not possible add shared folders.

Server: outlook.office365.com, 993 Username: name.lastname@company.fi/sharebox1 (where name.lastname is real working account name, just same as in position 1- working account. Also this sharebox1 work in outlook.) Connection security: SSL/TSL (no difference is it this or stattsl) Auth: OAuth2

(I am sorry, all my systems are native language, so I must translate---)

OK: Now I try use this shared folder. It is visible in Thunderbird. But immediately thunderbird open Browser and ask password: "name.lastname/sharebox1", wrtite password. Now I put same pw as in this account (name.lastname..). "Password wrong." I try empty password. I try account password.

SO: HOW to add shared mailbox in Thunderbird? This information "name.lastname/sharebox" not work. Is it any other method? Or any Exchange setting modification make this?

After updating Thunderbird to 115.5.2 I receive an error when I check (get) messages of my gmail account : 'The STAT command did not succeed. Error getting message number and size......'. However, the messages do come in and so the error turns out false. since the authorization (OAUTH2) credentials are accepted.

I have my server settings check messages from startup; every 5min; automatically download new messages. That works fine. Again only when I goto "Get Messages" the error shows up.

What is wrong here and ho do I fix this? Thank you

I have 4 different email accounts, all managed by IONOS. These have all been set up under thunderbird OK. But when I send an email from 1 of these email accounts I always have to enter my password for that a/c. With all the other accounts, this is not necessary. I do not use Thunderbird or Firefox password managers. I assume that I must have made an error in setting up the outgoing details when setting up that particular account in Thunderbird, but I cannot find a way of checking if that is the case.

When I delete an email, it usually goes to the trash, so I can find it again. Now the emails are deleted permanently and disappear. How can I keep my emails in the trash? Sincerely Helle

in my 'podcasts' folder I have ~2 pages of folders of the type feeds.json-xxx.corrupt where xxx is some number, see attached image.

With the intention to re-subscribe to my feeds later, I have deleted all other folders in my podcasts folder. Trying to simply delete the feeds.json-xxx.corrupt folders did not work. How can I get rid of them?

(I am using the portable version of thunderbird)

Everything is gone? All my organized folders, everything. It prompts me to set up everything again. It then gives more prompts I don't understand. What should I do? This is a disaster