Thunderbird Support Forum

I'm trying to see whether Thunderbird may work for me.

Situation: I've been using a 2012 mac mini, now upgrading to a M1 mac mini.

I have used the mac's "MAIL" program for over a decade. Some of its folders are pretty large.

For reasons not important here, I can't use the apple "migration assistant", and have tried to migrate the folders to the now-current Mail program... and they utterly fail.

Thus, since I liked the look of Thunderbird, I figured I'd see if IT could import the mailboxes. Short answer, not well enough.

I've read up on it, tried various ways, added the import/export extention; of course the program will NOT import mailboxes directly from mac Mail despite claiming to... a known flaw... but it will also not import the MBOX files and then use them.

It does seem to import the whole file, in that if I check the resources for thunderbird in the user file, I see that one test mailbox has indeed kept the full 2.15gb capacity... but rather than showing the roughly 37,000 emails in that file, it only shows about 6,000. I've tried it multiple times, and have gotten different file totals between 5100 and 6300 total.

Any workaround, or is Thunderbird not for me?

Thanks for any advice.

DJ

I've gone through most of the questions asked regarding this and have tried to follow all of the directions but none of them work. Let me begin by saying this is the worst time I've ever had at migrating from an old computer to a new computer using TB ever. EVER! This is the worst. I am moving from an ASUS Win11 to a HP Win11 so there shouldn't be that much of a problem. I've done this more than a few times so I know the drill of copying the %appdata% from one place to another. I have installed uninstalled deleted reinstalled, uninstalled reinstalled deleted three times and keep getting the same problem and have been doing this going on three days. I donated to get his copy and am about to ask for my donation back if I don't get a very simple answer. I keep getting that error message no matter what I do. I need a very simple walk through on how to get what I am able to save from the old computer into the new computer without a lot of magic and rain dancing and click here and delete this and see if this sticks. I need a very simple take your profile.zip and unpak it here then open TB and do this. PERIOD. The profile is on the same computer not a server. If I cannot get a quick down and dirty answer please just tell me and I'll ask for my donation back and move to MS outlook and deal with their FU'ed POS. I really don't know why TB has taken a turn for the worst here. But it's not looking good IMHO.

Hi, Last week, my Thunderbird just stopped showing new incoming mail. I have tried many, many times to get it up and running with my new emails. I am with Telstra as my internet provider, running Windows 11 and Norton360. I am not able to send either. All my folders are OK, and I have not lost any content. I am able to see new emails on my Telstra email but I prefer to have Thunderbird. Please advise what to do. Ryan

I am migrating from Thunderbird to Office 365. I have moved the email by putting the Gmail details into Office 365. However could you please advise how I can migrate Tasks , Calender and Contacts from Thunderbird to Office 365 without having to pay for an Mbox to pst conversion tool.

I downloaded. I donated. Then a screen come up with an envelope and some love hearts saying "one more step". But there is no indication as to what that step is or how to take that step! How does one install this program?

After recent update to Thunderbird 115.11.0, I can't send emails through my hotmail smtp server.

Error message: Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp-mail.outlook.com timed out. Try again.

I read the Thunderbird update for 2024 information that recommends changing Normal Password to OAuth, but OAuth is not an option on the drop down list of methods. (see attached)

How do I fix this? Thanks

I've been getting error messages when I send emails using thunderbird about server timing out. As a last resort I tried removing all accounts, and just set it up again. But then I started getting the error message during manual configuration step "Thunderbird failed to find the settings for your email account". I've already tried creating a new profile I'm still getting the same error.

here's the manual configuration I'm working with Incoming: IMAP, port 993, SSL/TLS, Normal password Outgoing: port 587, STARTTLS, Normal password

our team uses GoDaddy for email domains - not sure if that's relevant or not. other teammates have been able to set it up successfully. Same configuration, account and password.

Once you add a new account, you have to race to open up the settings and turn off the "Download all mails" setting that is hardwired as the default. Even after having done that, I am left with GB of copies of mail messages that I don't want to store on my local system.

How do I get rid of those local copies? Compacting doesn't seem to do it - there's no "Compact now" button in any case. I don't know what "when it will save over N MB in total" means, exactly. Save compared to what? Now 50% off!

Likewise, if I have Message Synchronizing (Keep messages in all folders etc) turned off, but Disk Space - Synchronize all messages locally regardless of age is still selected, is it going to download copies anyway or no?

If it will download anyway, or if it already did download, if I change the Synchronizing setting to "only the last 30 days" will it remove the older local copies? When?

The only "recover disk space" option deletes both local copies and originals on the remote server.

There really should be a "purge local copies" action available in the client. It may be that it is OK to go out to the OS and remove certain files myself, but maybe it won't be in the future. Every note that is about "Simply open a Terminal window..." describes specific files that don't quite match what I see here in May of 2024 on a Mac. But the tool itself knows what can be removed safely.

Upgraded my Ubuntu server from 18.04 -> 20.04 and now I'm getting this error message "Unable to connect to your IMAP server. You may have exceeded the maximum number of connections to this server" from TB on my desktop. I've tried reducing the number of cached servers, and restarting my phone and nothing works.

I tried to move (copy) Proton mail emails to Google Gmail without success. I searched support for help but found no articles that worked. I started to use proton Mail but was unimpressed and need to move (copy) the Proton Mail emails to my Google Gmail. Any help would be appreciated. Thanks, Lou

Hi, I have upgraded my computer and Thunderbird, however only the INBOX folder is loading.

I have followed the instructions to migrate the folders from the 'Profile Folder' on the old computer, the data has transferred but is not organised as folders, as on the old computer and of course on the main server.

I don't mind if all the data is not on my computer so long as the Folders are there, empty or not but organised in as they are on the main server.

I'm wondering if I selected an incorrect setting while setting up the account within Thunderbird on the new computer.

Thank you and kind regards, Mark.

Hi, am getting this error and am unable to use our new PC as this Thunderbird mail app is failing to migrate the profile from the other windows PC. Need your help asap on how to fix this. Not very technical, so need help. I updated Thunderbird to the latest version (115.11.0 32 bit) on my old PC before copying the profile over and loading Thunderbird on this new PC which has 115.11.0 64 bit version.

Uncaught (in promise) NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.copyTo]

   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.jsm:659
   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.jsm:668
   _mergeLocalFolders resource:///modules/ThunderbirdProfileImporter.jsm:641
   _importServersAndAccounts resource:///modules/ThunderbirdProfileImporter.jsm:250

Hi, I have had Thunderbird on my Windows 10 laptop successfully for many years. Today I added a new email account, but then Thunderbird kept losing connection. I thought I'd try uninstalling and re-installing it, but now I get the message that it can't be installed on my laptop. Anyone know how I can get round this?

I can't get on with Thunderbird 115 so want to install an earlier version. I have installed 102, but it asks for my school or work account log in, which I don't have. How do I achieve what I want, and stop thunderbird updating to 115. I need a quick answer as I have just made a donation to you, and if I can't have what I want I will ask for my donation back.

Watson.

I just purchased a Google Pixel 8a, and needed to install the reader for my Yahoo Mail account. When I searched for Thunderbird for Android, I found Edison Mail+. How does that fit, or is this something I don't want?

Is there - yet - a Thunderbird for Android? If not what do you recommend? I had been using K-9 mail on my Pixel 6a (which, I had understood, was the forerunner of Thunderbird for Android), but it just doesn't want to install on the 8a.