Forum der Gemeinschaft Thunderbird

Trying to setup Thunderbird for wife’s new laptop… Her 4 separate email accounts with auto setup for the IMAP server info without issues. One account however will not – VERY frustrating as this works fine on her old laptop. Thunderbird setup now appears to have an extra (4th) field required when setting up the account: Usually, its just name, email address and password. I see there’s now an extra box titled ‘Your Login’ being required for auto login. I have no idea what this field should be set to. Also, when I attempt to do a manual setup for the account, the port numbers and server names shown on the internet are completely different to those used on auto, and still get rejected. Doesn’t help that MS trying (and succeeding) to confuse us with all this “Outlook vs Outlook Classic vs Outlook.com”. My wife is unable to continue her work until I get this sorted:-( PLEEEAAASE can someone help me setup this xxxxxxx@outlook.com email account in Thunderbird as an IMAP account?

'Morning, 5-19-26

I'm having an issue that's not major, but irritating. and getting time-consuming.

'Recently left Windows 11 behind (good riddance!) and have gone back to Linux Mint, which is working out well for me. But there's a strange and persistent glitch" when pasting into T-bird from Autokey, which I use daily,

I get typos, dropped spaces, etc, whenever pasting into T-bird BUT INTO NO OTHER PROGRAMS. My workaround has been to paste first into a text editor (which receives the pasted text perfectly formatted), THEN into T-bird from there.

Again, it's not a major, life-threatening issue, but at the end of the day it's a real time-consumer.

I've posted this question on other forums, but no one can give me an answer. Is there a text setting or something n T-bird that I'm missing? A different form of ASCII, etc? Thanks for any suggestions you can think of.

Btw, I've used and loved T-bird for many years, and love it. Best email client I've ever used, and I've been online since the mid-90's (yeah, I'm an antique! ha ha). I try to send a donation once / year. Keep up the good work!

Thanks again, Dave Harnish drs@sosbbs.com

John 3:3

My business has two domains. I can send email to a Gmail account holder using the primary domain with no issues. But amy emails from what I call the "secondary" domain below are treated as spam. This occurs with two different email addresses using the secondary domain.

Both domains are hosted with Bluehost. Exhaustive research has revealed the following:

• Settings in Thunderbird are exactly the same, e.g. ports, security, SSL/TLS, etc. for each domain.
• There is no subject line or content that could possibly be regarded as spam.
• MXToolbox indicates that the secondary domain is not on any blacklist.
• Extended support via Bluehost reveals that SPF, DKIM, and DMARC records are all correct.
• Email sent to a Gmail account using the CPanel (Roundcube) is not flagged as spam. Only emails sent via Thunderbird are flagged.
• Emails sent to a Gmail account from the secondary domain using my mobile phone, but still on the same network/IP address, are not flagged as spam.
• If I first send an email to one of the secondary domain emails FROM Gmail, then reply to it, the reply is not flagged as spam.

After many hours of head scratching (and later, head banging), I am pretty much at my wit's end with this problem. I'm an electronic engineer but this one is definitely out of my wheelhouse. Any help would most certainly be appreciated!

Thanks in advance, Don

Hi, I've been using Thunderbird latest version for a few days. Too much I have a problem that is bothering me. I have 20 accounts and if I choose Unified Folders, on the six of Tunderbird I see only a part of the Accounts and precisely 14. To solve my problem I also used the "Unified Folder Debugging" add-on but it didn't solve the problem. Why do I have this problem? I would like to use Unified Folders but I can't do it because I don't have any Accounts. Thanks for some info.

I have 4 email account. One account will not allow me to delete or send to junk box. When I press delete nothing happens. The emails (at least 30) that came in are marked junk too. The other 3 account work fine. I have had these 4 account for years and never had a problem. I have done a complete scan with Norton and nothing came up. Thank You in advance

I want to use thunderbird on a Windows 11 laptop. Tell me how to connect Thunderbird to send and receive emails from email account, jds@sefcik.net, hosted at smartmail.buz.net.

I was cleaning up my Inbox when I looked at the "Important" folder. I read in a number of places that this is a "Gmail" thing, and messages get in this folder apart from any action etc on my part.

I have a couple questions.

FIRST, are the emails in the "Important" folder only in that folder or are copies in there? I deleted a number of 2 to 3 year old emails that I do not consider important today. The closer I get to this year [2025], the more careful I get.

SECOND, how can the auto-population of that folder be stopped and the folder be deleted? I keep my important emails in designated folders so I can find them.

Thanks in advance

I am currently using Thunderbird version 140.10.2 esr. (32bit) I understand that to latest version is 150. I also understand that, from version 145, Microsoft Exchange accounts are supported natively by Thunderbird.

I am using a generic desktop PC running Windows 10 Pro (22H2)

I am having difficulties with an Exchange account using the OWL add on.

I would like to upgrade my Thunderbird to the latest version and use the native support for Exchange accounts. I would also, if possible, like to upgrade to a 64bit version.

When I follow the instructions (Help/Update Thunderbird) the pop up reports that 'Thunderbird is up to date'.

I can't see a way forward at present, can someone assist please.

I have remote content blocked as a default. If I choose to view remote content **for an individual message**, there seems to be no way to reblock it, because the yellow bar with "options" disappears after you allow the remote content for that message. (Whoopsy! Changed my mind! Let's say I don't want the remote content to transmit that I opened the message a second time when I do so.)

Mail Content > Exceptions does not help in this case, since I allowed the remote content from a specific message, rather than allowing a wider permission, such as allowing remote content from a particular email address or website. Copying the message link into Mail Content > Exceptions (as suggested in an old post) doesn't work, either.

So it seems I am now stuck having remote content active each time I need to open that message?

Windows 11 Thunderbird = current at the time of this writing. (150.0.2 64bit)

Attempting to install Thunderbird on an additional desktop using same address as my original computer has. That was my question:

Lin answered: Please quote any and all error messages you see, in full, verbatim. Screen shots would be OK.

Who is your email provider?

Have you compared all account settings, not just the email and password?

Here's my answer to those questions: "Authentication error" "probably wrong configuration, username or password."

My email provider is MTA (Matanuska Telephone Association) Yes, I currently use Thunderbird in my other desk top and it works fine.

New user - I recently moved thousands of messages from my inbox to a local folder.

At some point, Thunderbird asked me to compact folders and I said yes. I noticed today that I am now missing about 13 years worth of messages from my local inbox folder.

Since I moved them, it deleted the messages out of the original inbox (I also logged into that account via the web and they are not located in the trash on the server either). There are now only a handful of messages there.

Does compacting mean that messages are deleted? Everything else I read said specifically that it would NOT delete messages. Any tips on how I can recover some really important messages? (It deleted about 13 years worth of messages from early May 2026 back to mid-2013, so there are recent messages in there I really need!).

Steps already taken: I tried using "repair folder" and that did not work. I do not have any automatic filters set up. I tried locating my Profile, and moved the "msf" files to my recycling bin, as I read that deleting the msf file would rebuild the index and display emails that had disappeared. Nothing changed. This was new for me so perhaps I did something wrong? I haven't emptied the recycling bin yet so the files are easily retrievable if necessary.

I have 3 different hotmail accounts. And tried to set them up in a newly installed thunderbird app on windows (10,sorry not up to date). In the beginning I had 2 out of 3 working, but the last one is my business account and it didn't connect. I tried many different ways to get it working, and now only the 1st one is still connecting correctly. The second one also doesn't connect anymore and is giving me the: "The connection was refused when attempting to contact localhost." or Authentication error: Unable to log in at server. Probably wrong configuration, username or password.

I know for sure password and username are correct. I have added thunderbird to exceptions in firewall. I also tried turning the firewall off. no changes. I have no idea where it got so messy but can someone guide me in this? Most of it I do not understand so it is obvious I made mistakes.

After updating Thunderbird to version 150.0.2, I can no longer connect to my lolipop.jp mail servers.

Symptoms:

• Both IMAP and SMTP stopped working at the same time
• Webmail works normally
• Multiple mail accounts are affected
• Thunderbird times out when connecting to the servers
• The issue started immediately after updating to Thunderbird 150.0.2

Settings tested:

• IMAP: imap.lolipop.jp / Port 993 / SSL-TLS / Normal password
• SMTP: smtp.lolipop.jp / Port 465 SSL-TLS and Port 587 STARTTLS
• Tried Thunderbird Safe Mode
• Tried reinstalling Thunderbird
• Tried disabling Norton security/firewall temporarily
• Same issue persists

Could this be a known issue with Thunderbird 150.0.2? If so, is there any workaround or planned fix?

Thank you.

I just replaced my WiFi router and was able to get 5 messages after new network set up, but now it can't connect to outgoing or incoming mail server.. I double checked all my setting with Spectrum and all looks good, but won't connect.