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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 clicking the Thunderbird to enter my email the whole system goes through connecte3d to uepat624@gmail.com then up comes a message from Thunderbird indicating "you may have too many cached connections use IMAP Advanced Settings to reduce cached connections" Then things continue on for probably 5 to 10 mins. sending login info, looking up IMAP, checking mail server capabilities, looking for folders, sending login, opening folder box, downloading

Eventually email inbox and messages come up. I can send, receive and send mass mailings but when you read a message and want to go back to the inbox you have to scroll all the little boxes at the top of the screen back to the one that says "inbox".

I need someone to remove the cached connections. Pat Blackburn

I am running Thunderbird on Linux Fedora. I have two accounts set up. One of them is an icloud account. Every day, many times per day, it prompts for password. I have a nightmare to get one for it due to the new way Apple deals with stuff like this. I have to get an 'App Specific Password', which involves logging in, which I hate doing and doesn't work because I use a VPN and Apple discriminates against VPN users and locks my account every time i login (even though it's the same IP address every time).

I did manage to generate one, which got rid of the problem for a day or two, then it came back, generated again, and so I go around, each time having to unlock icloud account, remove old password, generate a new one, paste it into TB and then its fine for a few hours/days.

Would be very grateful for any ideas why this is happening and how to cure it.

thanks

Thunderbird processes in version 125.0 are not exiting cleanly, just like it was in v115.10.1; user intervention is required via task manager to kill the the open Thunderbird processes, before Thunderbird can be restarted.

Thunderbird will not start. Message Can't Load XPCOM. Windows 10. Have uninstalled and reinstalled Thunderbird multiple times. No change. Have deleted the Thunderbird folder in Program Files and reinstalled Thunderbird. No change.

I just upgraded to version 115.10.1 and I have since had numerous incidents where I could not move the cursor to add the next line etc. If I recall correctly this mostly happens after pasting text from a another email or other source. In fact there have been times when the entire composition becomes frozen. In this case it doesn't matter where you place your cursor, you will not be able to edit anything. Very serious problem and a major disappointment. I am always afraid to update at this point, and this is not right. The new releases need to be tried and tested.

I've been noticing apparent duplicate messages within my unified folders inbox on my desktop recently.

Looking further I notice that one of my accounts has 'INBOX' as one of its subfolders which is where the problem appears to stem from. When I look at that account in isolation (ie not in unified folders) I can still see the inbox as a subfolder.

The subfolder 'INBOX' appears to be a duplicate of the account's main inbox (it contains the same number of emails), which may account for the appearance of duplicates.

At a guess this is probably related to inadvertent moving of folders. I find that when trying to use the scroll bar (to scroll down the subfolder list), if the mouse strays slightly to the left it will pick up a subfolder and move it unintentionally. This can cause all sorts of problems with disappearing emails and the folder structures showing differently on different computers.

In this case the duplicate email problem only happens on my desktop. On my laptop I can still see a subfolder named 'INBOX' but it shows as empty and I don't see the duplicate emails in unified folders.

It would be really useful if Mozilla could introduce a 'confirm folder move' feature as that would eradicate inadvertent moves.

How do I resolve the apparent duplicate emails on my desktop? I am somewhat reticent to delete the subfolder 'INBOX' for fear of the potential consequences. . .

All of our "read" emails, --from all of our accounts -- have suddenly disappeared. All of the folders and subfolders are still present. We still get new email, but as soon as we read it, it's gone. We have had these same email accounts for years and have not made any changes. In Account Settings --> Synchronization & Storage --> "don't delete any messages" is checked. "Read" messages are still on our server.

So, 1) Why did this happen? 2) Is there any way we can get our messages back in Thunderbird?

Was trying to find a solution to new emails not showing but unread number increasing but no applicable articles were coming up. But after hours of trying solutions, I think the answer was to mark some older emails that were marked unread as read. Then the latest couple of days of emails started coming through. This happened when migrating Cox.net emails to Yahoo and then modifying Thunderbird account settings to retrieve them. This email account has over 14K emails from 2014 and later showing in Yahoo Inbox and somehow the Thunderbird Inbox is showing 26K, probably some duplicates, although I have been using the extension "Remove Duplicate Messages". In Yahoo, I made more folders for several older years and moved emails from the Yahoo main Inbox to those various years to cut the size of the Inbox. Any other suggestions would be great for similar situations.

Hello everyone, I've been using Thunderbird with the Plugin FiltaQuilla as a tool to print attachments of incoming mails (this are alarm information for a fire brigade). Our dispatch center sends the mails out using PGP for encryption, the decryption works properly. Since FiltaQuilla cannot work on encrypted mails, I forward incoming mails to the same account which removes the encryption. The strange situation is: if the filter is executed automatically upon arrival of a new mail, it forwards the message, but does not attach the attachment. If I run the filter manually, it does as it is intended to. See the screenshot for details: the mail comes in at 5:53, the automatic forwarding arrives at 5:59 but without an attachment. My manual filter-test runs properly and includes the attachment at 8:22. I've updated Thunderbird only yesterday evening to V 115.10.1. Before the mayor update to 115, I had the feeling that this problem did not occur. Please let me know if and how I can provide more details such as logs. Best regards Andreas Schultz

Hello

Yesterday there was update in Thunderbird and went well. But today, Thunderbird suddenly asking for credentials and then it went totally blank as in screenshot. There is nothing at all. But incoming mails are still showing up in windows notification and it can be opened as new tab of Thunderbird. I have been searching the possible cause and solution from forum and internet, but no luck. Can someone please help me about this ?

I made no changes to anything, but a week ago, my thunderbird app on my computer stopped loading new messages and began to throw this alert when I try to save drafts or send messages: > Your draft message was not copied to your drafts folder (Drafts) due to network or file access errors. You can retry or save the draft locally. The email on my phone, through the mail app on iphone, still works perfectly. Both the thurnderbird and mail app are set up through IMAP.

Hi I am having problems with Thunderbird, i’m not sure if it’s to do with a windows 11 update or something else. Thunderbird is not responding also at the start of the ‘not responding’ emails from one of my accounts disappeared and then gradually started to reappear but didn’t get up to date and now just not responding st all. I have tried various things to resolve this, uninstalling and reinstalling Thunderbird, doing this and opening my pc in safe mode, doing this and opening Thunderbird in safe mode. Deleting and reinstalling the latest windows 11 update, reinstalling the latest Thunderbird update. I don’t know what to try next? I read somewhere to delete your profile, after saving it, and getting a new profile but no idea how to do this. Any help appreciated.

I'm encountering an issue with searching for messages that have been moved from the inbox to various folders in the local archive. After manually sorting messages by topic into designated folders, the search engine appears to correctly identify and list all relevant messages (as shown in picture 1). However, when I attempt to open a message from the search results, the subsequent window is blank (refer to picture 2). This suggests that while the messages are displayed in the search results, they cannot be accessed as their links lead to empty pages.

I have temporarily resolved this issue by rebuilding the global database using the steps provided in the following link: https://support.mozilla.org/en-US/kb/rebuilding-global-database. This fix, however, only applies to existing messages, and the indexing breaks again for new messages.

Similarly, toggling the search indexing on and off for specific folders only indexes the messages that were present during the indexing process. This problem persists across multiple installations of Thunderbird, indicating it is not isolated to a single instance of the software.

Is there any option that I should set for correct messages indexing?

Is there any setting I should adjust to ensure messages are indexed correctly?

Today, most of messages have suddenly disappeared from my TB inbox, leaving only the most recent 105 out of approx. 18,000. I have not performed any operations (compacting, archiving...) that could have caused this.

I immediately invoked the 'Repair Folder' command, which did not resolve the problem. Further investigation revealed that the 'Inbox' file ('Profiles' folder) actually contains only 105 messages - seems like the 'Repair Folder' truncated the file!

Fortunately, all the messages are still on the server. My question: Is there a method to 'force' reloading of the missing messages?

Thanks, Ray

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.

All of a sudden all of my Comcast accounts are receiving the message: "Alert from account XXXXXX: Temporarily blacklisted IP Address - Try again later". Contacted Comcast and elevated all the way up to the top technical group and was told it was a Thunderbird issue. Tried resetting passwords, etc to no avail.

I've been running Thunderbird for years on Gentoo which has version 115.10.1 as the most recent. I don't send much mail so I'm not exactly sure when this problem occurred, but I'm unable to authenticate with my SMTP server. I have not changed any configuration. Some weeks ago a changed my password on the server, but I made the appropriate changes to Thunderbird password manager. All settings, username and passwords are 100% correct as I copy pasted all of them. IMAP on the same server (uses same credentials) works.

I have tried deleting and re-adding my accounts which did not help. I have also tried deleting my profile folder. All other mail clients (e.g. claws-mail, kmail, mailspring) with the same SMTP server don't have any problems sending mail. This problem seems to only affect Thunderbird and Thunderbird forks such as Betterbird.

I have no firewall and am using SSL authentication with cleartext password on the SMTP server.

I get the following output to console on attempted sending of message:

console.error: (new Error("Server error 503 Service Unavailable", "resource://services-settings/Utils.sys.mjs", 390)) console.error: mailnews.smtp: "Command failed: 535 Incorrect authentication data; currentAction=_actionAUTHComplete" console.error: mailnews.smtp: "Authentication failed: Incorrect authentication data" console.error: mailnews.smtp: "Authentication failed: Incorrect authentication data" console.error: mailnews.send: "Sending failed; Unable to authenticate to Outgoing server (SMTP) mail.kapsi.fi. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'., exitCode=2153066805, originalMsgURI="