Thunderbird Community Forum

I am using Windows 10 Home on an HP laptop. Some months ago, I began getting this error message when trying to start Thunderbird: Your Thunderbird profile cannot be loaded. It may be missing or inaccessible. I've been slogging along using my Gmail reader since then but I need my address books from TB for my business. I really need to get this fixed.

I've read all the questions/replies on this and have uninstalled and reinstalled TB. My Appdata/Roaming/TB file only has 5 files in it: Crash Reports, Pending Pings and Profiles plus a couple of 1 KB config files. Don't know if this is right or not.

When I search the Profiles folder using .ini, I get this Notepad info:

[Install8216C80C92C4E828] Default=C:\Users\*\Documents\yvfr1fi4.default Locked=1

[Profile3] Name=thunderbird IsRelative=1 Path=Profiles/kavosmqu.thunderbird

I have this yvfr file on a thumb drive and I tried uploading that into the roaming/TB file but I still get the same error message.

Any help greatly appreciated! Thank you.

July 2024 - Thunderbird is demanding that I change my Hotmail password, after long trouble -free operation. It will not login. Why? (I have not changed the PW yet, hoping for a solution that will avoid the necessity.) I fear that it may be due to some fault in OAuth. Can anyone please provide any help to overcome this problem? Tom.

The add-ons for removing duplicate emails in Thunderbird do not work for the latest version of Thunderbird, 128.0

Anyone know how I might search all my emails for duplicates and decide which ones to delete?

Using Tbird 115 (or later) can gmail contacts be the listing used in Tbird and be in synch when changes are made in the gmail contacts list. There appear to be various methods and I seek the best and simplest. Thanks

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="

There is no option for message headers under View. How can I see email message headers in Thunderbird?

I Googled how to do this but they all say there is an option in the main menu under View. Maybe at some point there was, but not now. So how can I see the email headers?

I get a message like this every time I start Thunderbird. The topic came up last year but the conclusion was along the lines of "...this problem will be fixed in version 128" but it was never clear whether or not the User followed Mozilla's support replies or what they had to do to clear the email message from Thunderbird. .....Well I'm running version 128.1.1esr and the problem still exists.

My questions:

1. What is Thunderbird trying to do? Compact individual email files? Compae from ct the whole Thunderbird Profiles folder?

2. Is the problem the size of the Profiles folder or the overall size of the hard drive the Profiles folder resides on? What is the Hard/solidstate drive is the maximum?

3. Is the problem related to the amount of Free Space left on the Hard/solidstate drive or is the issue the number of individual files?

4. Is the issue related to the number of Thunderbird files and/or folders OR is it related to the total number of files and/or folders on the hard drive?

5. Is there a limit to the number of sub-folder levels that Thunderbird can navigate?

Thank you.

Tom

Tom O'Brien TOBrienArchitect@gmail.com

My Sent folder disappeared. How do I restore the folder with the sent messages still intact. Or, at the least, just restore an empty Sent folder. The In-Box, Drafts, and Trash are still there.

All the settings are correct, and it seems that because there's no Sent folder I cannot send an email. When I try to send a message I get the attached Error.

My local phone company routes email through Yahoo Mail, then to Thunderbird. It was all working fine until my Sent folder disappeared. Now because of the missing Sent folder I have to create the email message in Thunderbird saving it in Drafts so I have a record. Then, I have to copy it and send it from Yahoo Mail. Needless to say this is a pain in the you know what.

Can someone please provide the instructions to get my Sent folder back?

Thanks,

Tess

Others have mentioned this but I'm not sure if there is a fix/anything is being done. The threads are all from previous Thunderbird versions.

I use Thunderbird for work. I have to find specific emails and folders - get to them quick. I am no longer able to do this. It's really distressing.

This is something really basic, that should be the default or else really easy to change.

I'm on a Windows machine and using Thunderbird 140.3.0esr. I've been using Thunderbird since 2003 and never had any problems. Now I'm panicking!

I moving from classic outlook to Thunderbird and I am having trouble finding how to change fonts and color in signatures for my emails. I do not do html it is a simple signature; name company name and phone numbers. I search and found no help. Is there a way to change color and font in the reply to an email? Sorry I know this sounds simple but I have been using outlook since it came out so this is similar but just enough to give me trouble. Thank you for any help, rick

That is the actual email that is has been sent, received, and saved. I don't want to lose it for legal reasons. Also will the address book sync with my Google contacts?

Hello and THANK YOU for Thunderbird and I am looking so forward to getting off Outlook! I am about 4/5 way through setting it up on my desktop.

I currently keep my calendar on Outlook. I have been able to import my folders, contacts and mail, but when I go to import the Calendar, the box on import cannot be selected. Is there something else that I need to do to bring over my calendar? Did I miss step when I did the initial set up?

Please Someone help ?

I have followed all the suggestions I can find, but my Thunderbird Calendar will not sync with the Outlook Calendar on Windows 11. I am using TB Sync, but every time I try to add my Outlook Calendar ? It refuses to accept my Password, even though it is correct, and the User name and email are too ! It shows as error code 401, and cannot authenticate ?

I have tried a suggestion to create an 'App Password' to use in my Microsoft account, but the options described do not exist in my account !

Can anyone please help ?

Have a folder on my yahoo webmail account with >100K emails accumulated over time. The emails are of no lasting value

I just received a notification (via a banner on yahoo webmail when I log in) that my storage is full (never seen this before, but not surprised that Yahoo would be looking for "additional storage" revenue - not interested.)

I'm attempting to delete the emails in this (large) folder (which are of no lasting value), so far with no success.

The initial problem is that yahoo's functions to expunge (permanently remove) the emails (after moving them to their trash folder) does not work (either 0% progress overnight, or progressing 0-100% progress, in either case all of the emails remain in their trash folder and I continue to be notified (by the banner at sign-in) that email storage is full (and I do not wish to purchase any additional storage from yahoo.) As this is a non-premium yahoo account, no support exists.

It appears that yahoo webmail does not expose their trash folder via imap (it appears empty on imap view). Thunderbird "empty trash" on the hosted Trash folder shows no contents and completes immediately with "emptied trash".

I've now tried moving emails from yahoo's trash folder to another (new) folder on yahoo webmail, then using thunderbird imap to move those emails from yahoo to a local folder. My expectation was that "move" means gone from server, present on client. That appears not to be the case.

While this step does create a local copy, a copy appears to be left in yahoo's trash folder which still cannot be removed, so the core problem (of their impact on yahoo webmail storage) is unresolved.

I understand that "expunge" exists in IMAP but I don't see how this can be used with Thunderbird.

As I'm somewhat going in circles trying to solve this problem, I'm reaching out here for advice.

Thanks

On 9/10/24, I tried to download my email and got the message: "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." To my knowledge, nothing had changed on my Win 10 computer, so why this is suddenly showing up is unclear. I have 555 GB of free space on my C: drive, so space isn't an issue. I don't know why the permissions would have changed.

I checked the TB help and found that there was an update, so I installed that. I checked for updates a second time and found another one which I applied too. TB is now at "128.2.0esr (32-bit)" according to Help > About.

I tried restarting TB in troubleshooting mode, but that didn't help. Can someone suggest a way out of this?

Thanks in advance.

If I mark a message as Unread, it appears in the list of messages in boldface type. But I am finding it very hard to distinguish those in bold from other messages that have been read and are not bold. Is there anything in advanced settings that would allow me to change the fill colour in the listing box, or perhaps the colour of the type, in order to distinguish unread messages more visibly from those I have read? Thanks!

I have a new HD and installed Linux Ubuntu 24.04.1 LTS. I installed Thunderbird version 2:1 snap 1-Oubuntu3. The program will not open Just get "Your Thunderbird profile cannot be loaded. It may be missing or inaccessible."

Typically if I experience a security certificate exception, thunderbird will popup the certificate exception box, I click to get certificate and am done.

Today I cannot get the certificate popup to appear. which is fine I know where the certificates are managed but I have not a clue how to add a certificate OR what information to enter into the "Add security exception" dialogue box

Any help would be greatly appreciated.

After Thunderbird just updated to Version 128.5.0esr today, now all my accounts are saying that the connection is refused. This is coming from three different email services that I have accounts on. I'm assuming it's not an issue with those servers as I can access them just fine with a different email client, and I didn't change any settings. Yesterday it worked, today it doesn't. Only thing that seems to have changed is Thunderbird got updated.