Thunderbird Support Forum

I have been struggling with slowness in Thunderbird in recent months (Windows 11, mid-range Lenovo laptop). There is often a distinct lag during even the smallest operations.

Examples are: selecting an email, closing a tab, typing, calendar events editing.

TB process in Windows usually uses 1000MB RAM. RAM is around 60-70% usage usually. I never have the same slowness issues with other applications.

I tried quite a bit: safe mode testing, removing extensions, compacting folders and more tips. I ended up removing Thunderbird and my profile entirely, and reinstalled the latest version with an empty profile. I just set up my Gmail and other email account. No extensions installed, yet still the same issue.

Could it be that something is still there from a previous install, if I removed my profile?

I've been using Thunderbird in Linux and Windows for years with moderate issues that I was able to resolve, but am now really puzzled. Please help.

I have not had access to my email since the April 18 Thunderbird update, receiving this error message: "After changing password on an IMAP account, the account could become locked due to too many failed login attempts" How do I fix it? Please email me at jjhpor@gmail.com because my primary email, using Thunderbird, does not work (See above) Thank you Jim Housman

Running Thunderbird 115.10.1 on Mac OS Catalina 10.15.7. Mail stopped communicating. Tried using the "Access Account Setup" for existing Email. Put in full name, email address and password and clicked continue to have Thunderbird configure the settings automatically. Did not work with auto settings (POP3). Went back to "Access Account Setup" for Existing Email and instead of clicking continue, I selected "Configure manually". Tried putting in the IMAP protocols and correct port settings, but the "Done" button is grayed out. I am at a loss of what to do to get my email back up and running and at the same time don't want to lose and emails/folders that are currently set up. Any help would be great.

Thanks

Normally when you starting to write a new email, Thunderbird will set the 'from' address to the address of the account whose mailbox you're current browsing.

However, I have a saved search that entirely contains email from my secondary (work) account, but if I start a new email while browsing it, it picks my default (home) email address. This has caused me to accidentally send emails from the wrong address more than once!

Is there any way to change it so that it'll set the 'from' field of new emails to my work email when browsing that specific saved search?

Computer crashed. After restoring, Google calendar is not syncing. No error message that I can see. I unsubscribed and resubscribed to no avail. I have no clue what to look for and searching here is not helping as all the references to this are years old. Can someone help me figure out why this is happening?

As stated in the question, messages older than 1000 days are not deleted (this is a POP server). This is on my Desktop which is my primary PC. I also have a laptop using Thunderbird with "Leave messages on server" but with neither option (Number of days or Until I delete them) checked. The purpose of the laptop settings is that since it is not my primary PC I don't want it to delete anything from the server.

I did quite a few searches and the closest thing I found was another user who had migrated to Thunderbird after using another mail client for years, and it sounded like after they installed Thunderbird, they imported their old emails from the old client and then began using Thunderbird. The explanation they got was that any emails that had not been downloaded from the server by Thunderbird would not have a download date in Thunderbird and would therefore not be subject to the "older than xxx days" setting. That scenario doesn't apply to me because I have been using Thunderbird exclusively for at least 5 years, so all emails on the server that are less than ~1825 days (5 x 365) were downloaded by Thunderbird. All emails older than 5 years have long since been deleted from the server manually.

Either I am misunderstanding the "For at most xxx days" setting or something is not working properly.

I got this error message and don't know what to do with it. All the other subs under gmail (sent, all mail, etc) are fine. No current inbound gmail displays under "inbox," though it does in "all mail." While checking by using gmail app, everything seems fine. How can I reopen or repopulate my inbox? Thanks.

Hello All,

I have recently installed Thunderbird email client which populated on its own and before I was asked for an address or Password! This may be by design which is not an issue as such. However, I noticed that none of my Laptop, WIN 10, Windows Live Mail subfolders were present.

I had imaged at some point I would have to import all my Folders and the emails from Window Live Mail using the importexporttools-3.3.2 program. I have also been made aware that sometimes the process would not be without errors. Nevertheless I forged ahead.

Unfortunately I have discovered there are odd emails missing. It seems I have two options to try and recover the missing contents. 1) To delete Thunderbird client altogether and fresh install, plus to import folders and emails again. Or 2) To repeat the import procedure by over writing, which will hopefully add the missing emails!

However, I have two questions, if I am able to over write. 1) Is it possible to repeat the import again? 2) Will the result be I end up with hundreds of duplicate emails as well as those missing emails?

Perhaps someone has experience of the outcome.

Thank you in advance.

Scenario: I have two E-Mails configured in thunderbird. For simplicity, let's assume they are: `alice@gmail.com` and `bob@cock.li` .

I have configured both via SMTP, and they are *totally different* SMTP servers (Gmail vs. cock.li)

If I compose a message from "alice@gmail.com" to "bob@cock.li", then when I reply from Bob's inbox in Thunderbird, everything is OK.

However, if I compose a message from "alice@gmail.com" to "bob.extra@cock.li", using the `.` alias feature of cock.li, then although Bob gets the message in his inbox, clicking "Reply" will actually set "From" as "alice@gmail.com" and "To" as "bob.extra@cock.li" !

To be very clear: this happens when clicking reply in Bob's inbox in Thunderbird.

I think this is a Thunderbird issue because:

• It happens even if I compose the E-Mail from Alice's webmail (i.e. Browser) (Note: Alice still exists in Thunderbird)
• It DOES NOT happen if Alice DOES NOT exist in Thunderbird
• It DOES NOT happen if I try and reply as Bob via cock.li's webmail (i.e. Browser)

My guess is somehow when Thunderbird sees both Alice and Bob as valid accounts in Thunderbird, but the recipient was an aliased version of Bob, it somehow gets confused.

Here are example received headers for an actual demo I tried. (poiasd@saxrag.com is main E-Mail, abuse@saxrag.com is an alias. poiasdpoiasd@cock.li is the sender)

``` Return-Path: <poiasdpoiasd@cock.li> Delivered-To: poiasd@saxrag.com Received: from mail.saxrag.com by vps-2395d3b9.vps.ovh.net with LMTP id Ujt4LrxzMGbCCBAA3wKhXw (envelope-from <poiasdpoiasd@cock.li>) for <poiasd@saxrag.com>; Tue, 30 Apr 2024 04:29:48 +0000 Authentication-Results: mail.saxrag.com; dkim=permerror header.d=cock.li header.i=@cock.li header.a=rsa-sha1 header.s=mail header.b=JEr8eBKM; dkim-atps=neutral Received: from mail.cock.li (mail.cock.li [37.120.193.123]) by mail.saxrag.com (Postfix) with ESMTPS id A0E8C43C03 for <abuse@saxrag.com>; Tue, 30 Apr 2024 04:29:48 +0000 (UTC) MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cock.li; s=mail; t=1714454824; bh=srzi4nIgmpT6bW/cD6Um2I0qdwT33DsnyzueIPNTpP0=; h=Date:From:To:Subject:From; b=JEr8eBKMA14h1Cxa9V/VRXI4HW9N2jgxJRoLqt7JGONFuPPGOeOH8RYV3+OjkpnIw d/gN5oVnmP0UvUrDkslxvmypeG8qt5NHSSQ2wk5I65iqx+soYPJ8imYYBTu4b1VhHk kTQErXT23hsZwLHoXSHlpnBQYpuuY7uHZXYacEAxVjzZ46ICNc1xDX/iAaA/DIF79h iwZMJT1+Gs3+jh7mnbU+fp0vJA+eafp8z+OXELLEMTWBtkp1imXKjig5X/k3DXAG7a jqeff2obhLKPV39BtxbaXIxVsRmECwSZ7/O2fhqRC9FIFVepH5FQpZFXG5hqJ07WCa GhumeUysmhJxw== Content-Type: text/plain; charset=US-ASCII;

format=flowed

Content-Transfer-Encoding: 7bit Date: Tue, 30 Apr 2024 13:27:03 +0800 From: poiasdpoiasd@cock.li To: abuse@saxrag.com Subject: Sending from WebMail User-Agent: Roundcube Webmail/1.4.15 Message-ID: <07a14e0d75a83f779ade6de65c42db83@cock.li> X-Sender: poiasdpoiasd@cock.li ```

In a recent email Thunderbird sees an HTML message as plain text, and does not decode it. The message is decoded by my phone using "Email - Fast & Secure Mail by Edison Software". See attached screenshot. Normally Thunderbird suceeds where phone apps fail.

All other HTML messages seem OK

Here is the message source 40%; font-family: arial, helvetica, sans-serif; font-size: 16px; text-ali= gn: left; margin: 0; padding: 0;" align=3D"left">The UK Government introd= uced the new requirement last year which means voters in England have to = show an acceptable form of photo ID when voting at a polling station.</p>=

=A0

<a href=3D"https://lnks.gd/l/ey= JhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDEsInVyaSI6ImJwMjpjbGljay= IsInVybCI6Imh0dHBzOi8vd3d3LmNoYXJud29vZC5nb3YudWsvVm90ZXJJRCIsImJ1bGxldGl= uX2lkIjoiMjAyNDA0MzAuOTQwNTc0OTEifQ.sF6WGrw7AMAA7KUoeJe3PefG-JsfcexOBU6ji= k9oZyQ/s/1080167471/br/241551225317-l" target=3D"_blank" rel=3D"noopener"= style=3D"color: #FFFFFF; text-decoration: none; -ms-word-break: break-al= l; word-break: break-word; -webkit-hyphens: none; -moz-hyphens: none; hyp= hens: none; background-color: #7F7384; border-radius: 3px; border-color: =

1. 7f7384; border-style: solid; border-width: 8px 20px;">View the full list=

of accepted photo ID.</a>

=A0

People voting by post ar= e also being reminded to return their postal votes by Thursday May 2.

=A0

If you are unable to ret= urn your vote by post before Thursday May 2, you can take it your polling= station or the Council offices on polling day.

=A0

The Elections Act 2022 h= as made several changes to the existing electoral law which means from Th= ursday May 2, you will be only able to hand in a maximum of up to six pos= tal votes per poll. This includes your own postal vote, and postal votes = of up to five other people per poll.

=A0

If you are handing in po= stal votes at either a polling station or the Council offices, you will b= e also asked to complete a short =91postal vote return=92 form by a staff= member.

=A0

Voters are also reminded= not to post postal votes into the letterbox at the Council Offices, othe= rwise the postal vote will be rejected.

=A0

<a href=3D"https://lnks.gd/l/ey= JhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDIsInVyaSI6ImJwMjpjbGljay= IsInVybCI6Imh0dHBzOi8vd3d3LmNoYXJud29vZC5nb3YudWsvcGFnZXMvdm90aW5nX2J5X3B= vc3QiLCJidWxsZXRpbl9pZCI6IjIwMjQwNDMwLjk0MDU3NDkxIn0.gcfM6b0PSr6dSbpI-4kF= 7mKXs-8XTkNGnVuzpzPyzkQ/s/1080167471/br/241551225317-l" target=3D"_blank"= rel=3D"noopener" style=3D"color: #FFFFFF; text-decoration: none; -ms-wor= d-break: break-all; word-break: break-word; -webkit-hyphens: none; -moz-h= yphens: none; hyphens: none; background-color: #7F7384; border-radius: 3p= x; border-color: #7f7384; border-style: solid; border-width: 8px 20px;">F= AQs about the changes to postal vote handling</a>

style="3D"=A0

A total of 76 polling st= ations staffed by more than 290 people will be open between 7am and 10pm = on May 2 so people cast their vote. Your poll card will tell you which po= lling station you must vote at and offer a list of the types of photo ID = which can be accepted.

style="3D"=A0

<a href=3D"https://lnks.gd/l/ey= JhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDMsInVyaSI6ImJwMjpjbGljay= IsInVybCI6Imh0dHBzOi8vd3d3LmNoYXJud29vZC5nb3YudWsvbmV3cy8yMDI0LzA0LzMwL3J= lbWVtYmVyX3lvdXJfcGhvdG9faWRfb25fbWF5XzIiLCJidWxsZXRpbl9pZCI6IjIwMjQwNDMw= Ljk0MDU3NDkxIn0.Vy8Vw2ouSthk-IlFIovxn-WUZnjsbIRz-rdhoRPUQe4/s/1080167471/= br/241551225317-l" target=3D"_blank" rel=3D"noopener" style=3D"color: #FF= FFFF; text-decoration: none; -ms-word-break: break-all; word-break: break= -word; -webkit-hyphens: none; -moz-hyphens: none; hyphens: none; backgrou= nd-color: #7F7384; border-radius: 3px; border-color: #7f7384; border-styl= e: solid; border-width: 8px 20px;">Read the full story</a>

                   </td>
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</table> </td></tr></table> </td></tr></table>

=20

<font face="3D">Stay connecte= d with Charnwood Borough Council:</font>

<font><a href=3D"https://lnks.gd/l/eyJhbGciOiJ= IUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDQsInVyaSI6ImJwMjpjbGljayIsInVybCI= 6Imh0dHBzOi8vd3d3LmZhY2Vib29rLmNvbS9jaGFybndvb2RiYy8iLCJidWxsZXRpbl9pZCI6= IjIwMjQwNDMwLjk0MDU3NDkxIn0.mVdB-DNGWaVvLIUunjXvXGLNEhiY9U5eiu2KR_n0ibc/s= /1080167471/br/241551225317-l" target=3D"_blank" rel=3D"noopener"></a> =A0 <a href=3D"https://lnks.gd/l/eyJhbGciOiJI= UzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDUsInVyaSI6ImJwMjpjbGljayIsInVybCI6= Imh0dHBzOi8vdHdpdHRlci5jb20vQ2hhcm53b29kQkMiLCJidWxsZXRpbl9pZCI6IjIwMjQwN= DMwLjk0MDU3NDkxIn0.sE8T-OVOmsXsbMsYe_dbkIkKQBVLqdnbjhvdAVgHC6w/s/10801674= 71/br/241551225317-l" target=3D"_blank" rel=3D"noopener"></a> =A0 <a href=3D"https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.ey= JidWxsZXRpbl9saW5rX2lkIjoxMDYsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8= vd3d3LmxpbmtlZGluLmNvbS9jb21wYW55L2NoYXJud29vZC1ib3JvdWdoLWNvdW5jaWwiLCJi= dWxsZXRpbl9pZCI6IjIwMjQwNDMwLjk0MDU3NDkxIn0.SXwaFZZofvE7dqdcVRxmTbrfC_-cZ= URKxlgi9Bh0p0A/s/1080167471/br/241551225317-l" target=3D"_blank" rel=3D"n= oopener"></a> =A0=A0<a href=3D"https://lnks= .gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDcsInVyaSI6ImJwMj= pjbGljayIsInVybCI6Imh0dHA6Ly93d3cuZ292ZGVsaXZlcnkuY29tLyIsImJ1bGxldGluX2l= kIjoiMjAyNDA0MzAuOTQwNTc0OTEifQ.9yTH5OwyBcvraY5boXQryghr0umfi7phFg3JQOT4b= Yo/s/1080167471/br/241551225317-l"></a></font>

<font face="3D">SUBSCRIBER SERVICES:</font> = <font face="3D"><a href=3D"https://lnks.gd/l/ey= JhbGciOiJIUzI1NiJ9.eyJidWxsZXRpbl9saW5rX2lkIjoxMDgsInVyaSI6ImJwMjpjbGljay= IsInVybCI6Imh0dHBzOi8vcHVibGljLmdvdmRlbGl2ZXJ5LmNvbS9hY2NvdW50cy9VS0NIQVJ= OV09PRC9zdWJzY3JpYmVyL2VkaXQ_cHJlZmVyZW5jZXM9dHJ1ZSN0YWIxIiwiYnVsbGV0aW5f= aWQiOiIyMDI0MDQzMC45NDA1NzQ5MSJ9.ADY_mCtFVj0k-6qwoAYiXubR9bVJaKN7syF_GVGm= LIU/s/1080167471/br/241551225317-l" title=3D"Manage Subscriptions">Manage= Subscriptions</a> =A0|=A0 <a href=3D"https://lnks.gd/l/eyJhbGciOiJIUzI1N= iJ9.eyJxdWVyeV9wYXJhbXMiOlsidmVyaWZpY2F0aW9uIiwiZGVzdGluYXRpb24iXSwiYnVsb= GV0aW5fbGlua19pZCI6MTA5LCJ1cmkiOiJicDI6Y2xpY2siLCJ1cmwiOiJodHRwczovL3B1Ym= xpYy5nb3ZkZWxpdmVyeS5jb20vYWNjb3VudHMvVUtDSEFSTldPT0Qvc3Vic2NyaWJlci9vbmV= fY2xpY2tfdW5zdWJzY3JpYmUiLCJidWxsZXRpbl9pZCI6IjIwMjQwNDMwLjk0MDU3NDkxIn0.= ZO2r2bzqIgpwsQEhTGZwRXXOHA6-_EEKQOM8DlKS9Z8/s/1080167471/br/241551225317-= l?verification=3D5.3ed4547e2334334d63ec5be244543750&destination=3Droger%4= 0rogerwhill.plus.com" title=3D"Unsubscribe from All Topics">Unsubscribe A= ll</a> =A0|=A0 <a href=3D"https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJidWxs= ZXRpbl9saW5rX2lkIjoxMTAsInVyaSI6ImJwMjpjbGljayIsInVybCI6Imh0dHBzOi8vc3Vic= 2NyaWJlcmhlbHAuZ292ZGVsaXZlcnkuY29tLyIsImJ1bGxldGluX2lkIjoiMjAyNDA0MzAuOT= QwNTc0OTEifQ.ytrrtEdY68bcdjdm5MMeGMO7YeM07ml8wrjyELRncY0/s/1080167471/br/= 241551225317-l">Help</a></font>

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not sure if this is where i should be but i tried the Thunderbird help and got no answer. After the most recent Thunderbird up date and a Thunderbird install over existing one when i go to my drafts folder and click on any draft or save message in there i get a yellow bar at the bottom of the page that i have never seen before . Now i do not want recreate a new profile and lose all my contacts book marks add on etc. how do i remove that yellow bar in Thunderbird mail

With Windows11 and Thunderbird 115.10.1, I am suddenly unable to send emails. It has been fine up until a few days ago and as far as I am aware, nothing has been changed.

I sent an email with multiple BCCs and no CCs or TOs, I put myself as one of the BCCs.

I did not receive it and I do not think anybody else did as well since I asked a few people.

The email is in the sent folder. I tried forwarding the email from my sent folder to myself as CC, and that worked. I also tried fowarding as BCC, and that worked.

So what is going on? Is BCC working? How can I know for certain? Do I need to foward the email as BCCs to all my BCCs to get this to work?

Thanks for your help.

I was subscribed to a large distribution list, but then unsubscribed. But I didn't unsubscribe. So I subscribed again, but was soon unsubscribed again! My email address and password may have been hacked. So I logged into my Comcast ISP and changed my email password. Then I started Thunderbird, and as expected, it asked for my password, and I gave it. My email came up. I tried sending an email and it asked for a sending password. I ignored it, but after a long delay, it refused to send the message. So I tried again, this time giving it my new email password. The sending then worked. I assumed all was now OK.

But, as a final test, I exited Thunderbird, and then restarted. It again came up OK with my emails shown. Then I again tried sending a test message to myself. But it again asked for my sending password! Thinking this might be a scam, I put in a password of "bullshit". Then I received the following popup message:

Sending of the message failed. An error occurred while sending mail. The mail server responded: Polite people say HELO first. Please verify that your email address is correct in your account settings and try again.

What!!! It sure seems like someone (at Thunderbird?) is in the loop grabbing my password before encoding it for storage. A similar thing happened in the past, where I think my account was hacked. So, was this a hacking attempt, and if so, was it from Thunderbird software or my Comcast ISP?