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I am buying a new PC. I would like a 'blank' TB on this machine so I can replan the folders and the email address books. I'd like the current copy on my current PC to be moved to the new PC such that I can access it as I do now but- like a 'sleeping' copy - ie just there to access the emails and address book occasionally/when needed, but not receive new emails.

This will give me a fresh start on the new TB on a new PC, and will save me having to clean up the old TB version. Is this possible? Thankyou

Recently Thunderbird was upgraded on my main PC, and suddenly the 'new mail' icon in top left was gone, I hav looked under various settings, and can't seem to get it visible.. I know that 'ctrl+n' is useable, my version here is 143.0.1 .. strange on my secondary PC Thunderbird version is 141.0 and there icon is still visible.

I have a bunch of folders and messages in an email tree in Tbird's Local Folders and I would like to move the root of those local folders and everything below that folder root to a Tbird remote email server which is an account on my Tbird tree. My Tbird is using IMAP to communicate with the desired server.

Is it possible to just drag the root of the tree from the Local Folders and plop it onto the desired server and all the messages would get moved to that remote server and everything would just magically appear there? Is it possible that it's that easy? :-)

I want to ask before I try it and really mess things up.

Thanks!

Compacting fails with error message " The folder 'Inbox on **********' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again." This happens on both my PC's, which are not connected in any way, but have duplicate installations. The profile is 7.75GB - PC A - Win 10 Pro - has 704GB spare disk space, PC B - Win 11 Pro - has 50GB spare disk space. I can think of no reason why write permissons would change. This problem started with ver. 138 & has continued with ver. 139

For account dhoule@formatio.info I have following folders: Courrier entrant Brouillons Modèles Messages envoyés Tous les messages Spam Corbeille Important Suivis

When I receive a message, it goes into Courrier entrant, Tous les messages and Important How can I stop this behaviour (or how can I reduce the number of folders under this account? Merci Daniel

We have poor eyesight, so in vertical display mode, we could really benefit from having grid lines (at least horizontally) to visually distinguish each message. We have read various solutions on the Internet, but none seems to work at least not in dark theme mode, which is the default for a great many people with vision impairments (or just plain tired eyes). Perhaps some solutions that once worked have been uprooted, so to speak, during the course of Thunderbird updates.

We are used to having grid lines in Outlook (desktop). We are currently exploring switching to Thunderbird, but it needs to support our vision needs. For us, this capability is fundamental, not optional.

We are comfortable making config entries, creating and working in userChrome.css, and the like. We would be grateful for any guidance in this regard.

Thank you kindly!

I have a backup.bak file.

My computer was re-set and I lost everything.

How can I restore my new downloaded Thunderbird, using this backup.bak file.

Thanks.

Rik

I’m using the Windows 11 version of the Thunderbird app, but when I try to add my Outlook account and enter my password, it shows “Authentication failed. Please check your username and password,” and I can’t complete the Outlook setup. I’ve tried changing my Microsoft account password and entering an app password, but neither worked.

Hello,

I’m encountering an issue after migrating my domain and professional email service.

My address was originally hosted by Cabanova and configured in Thunderbird. I recently transferred the domain and email hosting to OVH, which caused the old mail server configuration to stop working.

Here’s the current situation:

The account in Thunderbird is still using a POP server (ssl0.ovh.net – port 995), while OVH uses IMAP (port 993).

I cannot change the server type from POP to IMAP within the existing account settings.

When I try to add a new account, Thunderbird completely freezes after I click “Continue” and never gives me access to “Manual Configuration.”

I also cannot delete the existing account because it contains all my previous local emails that I need to keep.

At the moment, I’m able to send emails from this account via OVH, but I don’t receive any incoming messages.

What I’d like to do is simply update the server configuration to OVH’s IMAP settings, without losing my existing local messages or recreating the entire profile.

Could you please let me know if there’s a way to:

Force an existing POP account to switch to IMAP,

Or safely recreate the account as IMAP without losing local data and without Thunderbird freezing during setup?

Thank you in advance for your assistance,

My e-mails are sorted from earliest (top) to the latest (bottom). Suddenly about 15 messages have gone out of order. Early ones have appeared towards the bottom (later ones, have appeared under those). Is there an easy way of moving them so they are all sequential?

Thanks

I am thinking of going back to Thunderbird as my e-mail program (I currently mostly use Apple Mail). I have several e-mail accounts. On my personal Gmail account, only a handful of sent messages are showing up in the sent mail folder. On another Gmail account and on my business Google Workspace account, I do not have that problem; as best I can tell, all the sent messages are there. I would appreciate help in fixing the problem on the main Gmail account that I use for personal matters.

Although they are selected "Return Receipt and Delivery Status Notification" don't work!

Delivery Status is up to receiver decision but "Return Receipt" should be returned at all time??

Thank you in advance fo any assistance.

Joel

PS: Version 140.3.1esr (32-bit)

URGENT Version 142 for Windows 64bit is unstable. It freezes over after almost any action with usual Windows "Not Responding" message. Recommendation to Mozilla: Pull back this release and roll back to 141