Thunderbird Support Forum

I have 6 accounts on cox.net and today in two out of the 6 accounts, emails that I send are not saved and I get a message "Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. The "sent" folders for these two accounts are grayed out. I have verified that the account settings have the right folder as the destination for the sent emails and have checked that all emails should be saved. I also get a message in Thundebird -The current command did not succeed. The mail server for account xxxxx responded [TRYCREATE} Mailbox doesn't exist. Mail goes out but no copy is saved. Only two out of 6 accounts are affected and I didn't do anything to them before this started happening.

I've been a Firefox fan for years. I thought I'd try Thunderbird. I'm in need of some help please as I'm going round in circles.

I am trying to link my btinternet email account to Thunderbird. Thunderbird cannot do it automatically so I have to enter the details manually.

I have all the right settings according to BT: Incoming POP 995, SSL enabled but not StartTLS. Outgoing Port 465, SSL enabled not StartTLS. mail.btinternet.com is used.

The User Name and Password are correct but Thunderbird cannot connect to the account. There are no Firewall issues.

Something is happening because BT have notified me of potential unauthorised access and I have to reset my BT password. Even when I enter the new BT Password Thunderbird cannot link to the account.

Any suggestions as to what might be causing the problem? Thanks.

Hi, in the past couple of weeks as I am moving selected emails from my Inbox to their Folders, the remaining emails in the Inbox have disappeared (twice)Most recently this Monday. I was able to have Yahoo recall /restore many of them Wednesday. Then Today Friday April 26; I selected an email in the Drafts Folder to Edit, by selecting the Edit button and it disappeared.

This all seems ODD. I have not changed any settings or done anything different. I have lots of storage on the Hard Drive. Would you kindly assist yours dennis

Hello, I am trying to send emails from my iCloud account and it always fails due to the SMTP server timing out. I've tried making a new app-specific password, deleting and re-adding the account in Thunderbird, and made sure the authentication settings are right, but it still doesn't work. I can connect to the IMAP server just fine.

After importing events from the old ics calendar into the existing CalDav calendar. TB sent invitations out to all attendees, even for past meetings. How to avoid this?

Using windows 10, windows firewall, windows antivirus, Thunderbird 115.9.0 (32-bit)

Can't send from Optimum accounts.

Error message "Sending of the message failed. An error occurred while sending mail. The mail server responded: Spam detected by content scanner. Message rejected (ID 661FD756017B2BC6). Please check the message and try again."

Check outgoing server setting, tried changing authentication method, but got the same error.

I am struggling with Gmail and Yahoo mail account in TB these few days. I hit almost the same errors from both. I generated app password for Yahoo mail, and put it in when setting up new account. For connection security: SSL/TLS For authentication method: tried with Normal password, Encrypted password, and OAuth2 However, I am seeing the expected authentication window pop up when trying the OAuth2. For all three authentication method: errors are always the same --- unable to connect to your IMAP server. I've followed another instruction to change maximum number of server connections to cache into 1 or 10. Error messages were the same imap one. So, what should I do/try for next?

I have been struggling with slowness in Thunderbird in recent months (Windows 11, mid-range Lenovo laptop). There is often a distinct lag during even the smallest operations.

Examples are: selecting an email, closing a tab, typing, calendar events editing.

TB process in Windows usually uses 1000MB RAM. RAM is around 60-70% usage usually. I never have the same slowness issues with other applications.

I tried quite a bit: safe mode testing, removing extensions, compacting folders and more tips. I ended up removing Thunderbird and my profile entirely, and reinstalled the latest version with an empty profile. I just set up my Gmail and other email account. No extensions installed, yet still the same issue.

Could it be that something is still there from a previous install, if I removed my profile?

I've been using Thunderbird in Linux and Windows for years with moderate issues that I was able to resolve, but am now really puzzled. Please help.

I have 3 machines with Thunderbird. A while back I noticed that I had duplicate folders for sent mail (Sent & Sent Mail) and for Drafts. (Drafts and Drafts) I did a search and found a discussion from 2019, but nothing more recent. That one kinda lost me. I just got a new machine and installed Thunderbird again. My Gmail account on the new machine shows the same dual folders. Hopefully someone here can detail a solution in steps for a moron like myself.

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)

Hello My Thunderbird failed pop access to my Gmail account, at beginning of month. Any try to fix, and even change from pop to imap don't work. I get the windows as shown i images as result. I don't like see oauth/legacy/consent in the URL. - Change setting in Google from pop to imap - Cookie setting updated as forum suggest - JavaScript true as forum suggest

Any hint on forwarding step? Thanks Lars Granath

I have previously (about 1 month ago) connected without issue to my Ionos email account. Today it will not connect. I have updated all the POP3/SMTP settings, read from the Ionos site. I have re-entered the current password too. My Gmail account downloads fine, it is just my Ionos account that will not load. I don't get an error but the last mail showing is in March (2024) and I have had hundreds since then.

Hi 😊 I’m trying to resolve my sisters’ issue with Thunderbird, and I know nothing about Thunderbird. When I open Thunderbird, I have an issue in that the Archive folder is there but no content is shown

Yet if I go to where the files are they seem to be there. They were working but I accidentally deleted the folder and out of the trash folder as well. If I go into “C:\Users\Sue\AppData\Roaming\Thunderbird\Archives.sbd” where the emails and folders are, they seem to be there but not showing in Thunderbird when I click on any folder in Archive and are appear top be very small, i.e. empty.

I have screen shots if you require but thought not appropriate at this stage.

So running thunderbird 115.10.1 (64-bit) and more and more issues:

• the app keeps getting non-responsive for long period of time, to fix this I have to force quit the app.
• at times when composing an email the app freezes where no typing occurs for seconds or typing is very slow or after typing awhile the text suddenly appears.

Seems to be happening more and more trying to figure out how it can return back to it's rockstar state when it was <99 version.

any help would be appreciated.