Forum Thunderbird zajednice

I have a POP3 account that I access from both my laptop and my Android phone. On the laptop, I can "leave messages on server" after downloading; works great. But if the phone picks up the message first, the message is deleted, so it it never appears on the laptop. I've poked around to try to find a "leave messages on server" setting in the mobile app, but I can't find it. A Google search referred to "Advanced Settings," but I can't find that, either. Does this setting exist in the mobile app? And, if so, where/how do I find it?

And yes, I should convert the POP3 account to IMAP; I get that, but I can't do it at the moment. For now, I'm stuck with POP3.

Hi there! I and my colleague encounter some bugs with Thunderbird and we would like to seek your advice in regards of the issue.

1. <user a@citizen-systems.com.hk> was supposed to get a cc copy of the email sent by <user b@citizen-systems.com.hk> at Mon, 12 Jan 2026 09:35:19 +0800 but it never reached. The receivers, namely <user c@systems.citizen.co.jp> and <user d@citizen-systems.com.hk>, however, were able to get the mail. <user d@citizen-systems.com.hk> and <user a@citizen-systems.com.hk> are working at the same office and under the same network. Network provider checked the protocol, router, traffic and firewall are working as normal.

2. <user e@citizen-systems.com.hk> found a number of emails that she kept at "Inbox" disappeared on 12 Jan 2026 morning +0800.

She is unable to find it anywhere at her whole mailbox but has to ask the senders to resend them to her.

It would be very much appreciated if you can check and advise how to prevent the issue from happening again.

(PII redacted by moderator)

I have a message filter that copies every sent item to a local folder when I send it. I want this in addition to the normal sent item placed in the IMAP folder.

This works fine, except that when I reply to an email and the subject is prepended with "Re: ", the copy made in the local folder is not prepended with "Re: ".

Why is this, and how can I make sure the copy in local folders is prepended with "Re: " as it is in the IMAP sent folder?

Have asked this question before and last time it finally work, now nothing works

Have tried so many times to transfer from old laptop to new laptop, nothing works. Have watch the youtube videos and followed this. Can not get it to work.

and what does this mean three levels up to the AppData\Roaming folder

Just want the emails from the old to the new laptop Thank you

Address book import is not working after I import it. It says I have 516 contacts. All I see are big grey dots but no information inside them.

I'm exporting from Classic Outlook (2016) in .CSV format.

I am unable to send emails from Thunderbird. Getting the message: An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Connection from xx.xxx.xx.xxx refused.

When I check my password under "Tools - Security', I only see a password listing for my 'incoming' server [that I do not have a problem with].

My out-going server setup has "Authentication" as normal password. When I try to send an email, Thunderbird does not ask for a password. Is it possible the error message refers to lack of a password? If so, is there anyway to manually add an STMP password to Thunderbird?

Hi, for years I have had subfolders I created under a major folder called Archive [not the Archives folder you have]. The subfolders have names of people or organizations or topics and are in alphabetical order. Until this year, when I created a new subfolder, it automatically sorted to its alphabetical place [or, perhaps I had the option of sorting when I right clicked the major folder]. But for some months, I no longer have that option and have to laboriously drag the folder into its place among hundreds of other subfolders, which I find difficult. (Sorry--I have aged.) I must have missed some new thing I have to do--???

I entered a question about Thunderbird an hour or two ago (Jan 20, 2026). I started to look for a response, but I cannot find my question on the forum.

I entering this post for two reasons:

  1) I want to see if it gets posted and is visible to me
  2) I hope someone can help me find my post that I entered earlier.

So here goes, I am posting this

Jim A.

Good day,

On one of several computers we use to access email when we try to 'Get Messages' Thunderbird doesn't even attempt to connect to the mail server on two of the accounts set up. All four other computers access the servers just fine. In trying to resolve the issue on the recalcitrant computer I created a new email account with the host and added it to Thunderbird using the 'Add Account' wizard, and changed IMAP to POP3. Once the account was created it logged in and received the 'settings' email from the host, and I was able to send an email to another account. I could see the activity reports for the new account in the status bar. However no reports on the status bar for the original two accounts. I've triple checked port settings etc and up until a few days ago Thunderbird worked just fine on this machine. No changes have been made to the original settings. Prior to adding the new account, when asking to get messages the only report on the status bar was 'Done' without any information reported about contacting, downloading etc. The Done message showed up immediately upon clicking the Get Messages button.

Adding the new account and it working properly tells me my settings are correct and the install of Thunderbird is working. Thank you in advance for your suggestions.

John

I can't sign in to my email ([edited] @yahoo.com) on my desktop running Windows 11 Pro. I have changed password which has been confirmed with still no joy. I get the message:-If you still can't sign in try a different device. My wife can sign in on her Android phone but I can't

Hi, I am trying to export a calendar from a Windows 10 PC into a Lubuntu PC. The exported Home.ics file is about 217KB. At stage 4 in the import process (which shows the file name correctly) a message in red says "No importable items found in the file" . In the main area it says "Loading items" but nothing happens. Am I missing something here? Thanks

I can't log in after changing my email password. My email address is anita.bodin@telia.com. I can log in with my new password using Telia Webmail. I have been in contact with Telia and they refer you. Best regards Anita Bodin

Hi, I’m using Thunderbird with a Yahoo Mail account and I’m seeing two Draft folders in the left pane:

Drafts Draft

Their IMAP locations are different: imap://…/Drafts imap://…/Draft

Thunderbird only saves drafts into the Drafts folder (plural). The Draft folder stays empty, but it always shows up.

What I tried so far: • Account settings → Subscribe Unchecked “Draft” there, but it doesn’t save. After reopening Subscribe, it’s checked again and the folder is still visible. • Restarted Thunderbird multiple times. • Server Settings → disabled “Show only subscribed folders”. • Checked folder Properties, but there are no options to hide it or control visibility, so it looks hard locked by Yahoo.

Conclusion so far: Yahoo seems to force both system folders via IMAP and ignores unsubscribe, so Thunderbird can’t hide or remove “Draft”.

Is there any supported way in Thunderbird to permanently hide or ignore the extra Draft folder for Yahoo accounts, or is this a known Yahoo IMAP limitation?

Thanks

hi i went to create a folder in one of my emails which i did, but didnt see i spellet it incorrectly so i tried to rename it but it didnt rename instead it created a new folder with the correct spelling, i tries to delete the wrong one and i couldnt delete it, i moved the emails into the folder with the correct name and it moved into both folders which now doubled the size of the emails i had in the folders or thunderbirds database so i tried to delete the emails in the wrong folder and it delete all the emails in both folders but the folder stills the folders still the emails that where there but i cant see them and i cant compact the folders to save space

Using Thunderbird 140.3.0esr flatpak

Following the [chat faq], I tried to log in with my matrix mozilla.org account following the page instructions. For my @username:mozilla.org account added username in the Username field, mozilla.org in the Server field, then followed the rest of the steps (not entering the password because I'm using mozilla's SSO account, etc).

After finishing the set up wizard, it pops up the mozilla.org page (image below) saying there is an error and there is no further progress is possible. Any suggestions are welcome

My question / subject tells most of the problem. Here it is again in slightly more detail: SPF fail is the part of the undeliverable response to two different emails sent yesterday. What to do? Is down to me or ISP? Is this a Thunderbird problem, or a server level issue? If it is Thunderbird, what action do you suggest?