Thunderbird (115.6.1 (64 Bit) Unable to Send eMail

Suddenly, I can't send email from my Thunderbird (115.6.1 (64 Bit)) Windows app. Spectrum is my email provider. I can receive email just fine. However, when I respond to … (funda kabanzi)

Suddenly, I can't send email from my Thunderbird (115.6.1 (64 Bit)) Windows app. Spectrum is my email provider. I can receive email just fine. However, when I respond to an email and when I send a newly created email or replying to a receive email, I get the following error message - " Sending of the message failed. An error occurred while sending mail. The mail server responded: <[edited] @tx.rr.com> sender rejected. The email address you are sending as must match the email address you used to auth. Please check your SMTP settings. AUP#Out-1500. Please verify that your email address is correct in your account settings and try again."

I've been using Spectrum and Thunderbird for many-many years. This problem is going to cost me big-time if not resolved soon. I love THUNDERBIRD!

Please help!

My email address is - [edited] @tx.rr.com [removed phone# from public]

Asked by Robert Spencer 4 izinyanga ezidlule

Last reply by Toad-Hall 4 izinyanga ezidlule

Filters that worked for years have stopped working

Hello, Experts: First up, I'm a happy user of Thunderbird with some years of experience. I make use of filters, and up until about 2 weeks ago they all worked. Now two… (funda kabanzi)

Hello, Experts:

First up, I'm a happy user of Thunderbird with some years of experience. I make use of filters, and up until about 2 weeks ago they all worked. Now two of my filters (not all) have stopped working automatically, and I have to go to Tools/Message Filters and run them manually.

I'm on TB 102.15.1.

I have deleted the non-working filters and re-created them. No change in behavior.

I would NOT like to de-install/re-install TB because it's a good deal of work, and TB is a critical system for me.

That said, I keep a laptop computer for travel, and the filters work on that platform. IS THERE A WAY to copy a file or folder over from the working laptop onto my desktop machine, where the filters have failed?

Thanks in advance, Bob

Asked by bob366 5 izinyanga ezidlule

Last reply by david 4 izinyanga ezidlule

I can't open my mozilla for email accouts

I had a crash on my desktop PC, possibly due to an erroneous action of mine, which occurred on December 20th, which has ended with my PC, which after entering the passwor… (funda kabanzi)

I had a crash on my desktop PC, possibly due to an erroneous action of mine, which occurred on December 20th, which has ended with my PC, which after entering the password, the screen locks to black.

I turned to my laptop as a salvation, but when I tried to open my email, for which I use Mozilla Thunderbird, at first I opened the home page, but my email accounts did not appear. Currently, it doesn't even open that page when you tap on that desktop icon.

I'm an 80-year-old male and I'm getting more and more clumsy with the SW of the PC, so I pray that if you can help me it's in a language for the very clumsy in computer matters. I don't speak English so this is automatically translated, so I would appreciate it if you could help me in Spanish to restore my email accounts, since I am no longer used to using Web mail.

My PC is an HP Pavilion x360 -14-cd0018ns, I5 core 8th Gen. / W10 home/ HD ext. 3TB for data.

Thanks a lot. PLOK.

Asked by PLOK 4 izinyanga ezidlule

Last reply by david 4 izinyanga ezidlule

Delete contacts in address book

After decades of using Thunderbird it has amassed contacts. Even for my own contact it saves a contact like "lynn@szetosolutions". incomplete email addresses, or associa… (funda kabanzi)

After decades of using Thunderbird it has amassed contacts. Even for my own contact it saves a contact like "lynn@szetosolutions". incomplete email addresses, or associated with DMV...just for my own email it has saved 7 versions and or affiliations. I want to clean up and remove the excess, inaccurate email addresses that keep auto filling my emails and reduce the constant annoyance. Can someone help me? I'm so grateful for any help.

Asked by Lynn Quan 5 izinyanga ezidlule

Last reply by Matt 2 izinyanga ezidlule

cox to yahoo instructions

With the moving of Cox emails to Yahoo would it be feasible for Thunderbird to put an instruction list(with screenshots) of how to get all our TB email accounts from Cox … (funda kabanzi)

With the moving of Cox emails to Yahoo would it be feasible for Thunderbird to put an instruction list(with screenshots) of how to get all our TB email accounts from Cox to TB? Do we have to delete all our TB email accounts and re-enter them into TB under the new Yahoo or can we just change the server settings on the existing Cox settings? If just changing server settings what are the settings for the new yahoo? All my accounts are IMAP so if instructions could be made, maybe one for IMAP and one for POP for those who use either. Thank you

Asked by oldbob2 2 izinyanga ezidlule

Last reply by drnospame 1 isonto elidlule

Crashed Drive: What folder/file contains my Thunderbird info (folders, layout, etc)?

Hi. My hard drive crashed. I have a new pc and the old drive is readable in a drive enclosure hooked up to new PC via usb. I have done the typical search for the appda… (funda kabanzi)

Hi. My hard drive crashed. I have a new pc and the old drive is readable in a drive enclosure hooked up to new PC via usb. I have done the typical search for the appdata profile file, but I am not sure what I have here. I have attached a screenshot of the old drive and a global search on "Thunderbird". I am not sure where the profile file is residing. Any advice would be welcome. Thanks.

Asked by mark550 2 emasontweni adlule

Last reply by david 1 isonto elidlule

Gmail won't allow Thunderbird access.

System is win 11, latest TB, personal gmail account of long standing. I want to use TB as my email program for gmail. After installing TB, it asks for my gmail login an… (funda kabanzi)

System is win 11, latest TB, personal gmail account of long standing. I want to use TB as my email program for gmail. After installing TB, it asks for my gmail login and password, and recognizes the account, defaulting to IMAP, Oauth2, etc. When I press "done", I get a google screen saying that TB want authorization to access gmail files. But when I press "allow", the TB page shows an error message under the password field reading "Unable to log in at server. Probably wrong configuration, username, or password." I understand it is looking for my gmail username and password, and these are correct. I have tried this many times, including with variations: removing and reinstalling TB, creating a pw just for TB in gmail (subsequently deleted). I have read all of the gmail installation help notes at Mozilla. Most relate to a 2022 change in gmail re Oauth2. Nothing helps. Any advice?

Asked by craig.k7cej 5 izinyanga ezidlule

Last reply by Matt 5 izinyanga ezidlule

TB no longer can find hotmail or outlook

Here in Jan 2024 suddenly TB will no longer connect to any hotmail or outlook..it says I have to enter a new password but I have not changed my password and can get onto … (funda kabanzi)

Here in Jan 2024 suddenly TB will no longer connect to any hotmail or outlook..it says I have to enter a new password but I have not changed my password and can get onto them if I go directly to that site. Any suggestions?

Asked by oldbob2 4 izinyanga ezidlule

Last reply by blackspear1 1 inyanga edlule

thunderbird often 'not responding...slow to accept keystrokes and execute actions

Thunderbird runs slow...ie when I type an email I can easily type faster than thunderbird will accept characters....(this does not happen in other applications)...this ha… (funda kabanzi)

Thunderbird runs slow...ie when I type an email I can easily type faster than thunderbird will accept characters....(this does not happen in other applications)...this happened about a month ago, and then stopped ( I have no idea why)...but the problem is back. I am running Ver 115.10.0 build 2024012173147. Rebooting windows 11 makes no difference.... I just tried to enter Troubleshoot mode and thunderbird stopped responding....Top line says Mozilla Thunderbird (Not Responding). Thunderbird is connected to my gmail account. ...and I run IMAP....with 'store all messages on the computer', but thunderbird wants to load every email from the server'

Any advice would be appreciated Rick

Asked by Rickz 1 inyanga edlule

Last reply by david 1 inyanga edlule

sort by sequence

Why does Thunderbird keep changing my default Sort By preferences from Descending/Unthreaded to Ascending/Threaded. This is most annoying. Thank you

Asked by John Crellin 2 izinyanga ezidlule

Last reply by Matt 2 izinyanga ezidlule

Is BCC working?

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 f… (funda kabanzi)

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.

Asked by Robert Boire 3 emasontweni adlule

Last reply by Kerolena Lena 1 isonto elidlule

How do I downgrade from this horrid update? 115.5.1 (win10)

Mozilla has done it again. They seem to be on a mission to ruin their programs. I have already switched away from FireFox, and now I will have to switch away from Thund… (funda kabanzi)

Mozilla has done it again. They seem to be on a mission to ruin their programs. I have already switched away from FireFox, and now I will have to switch away from Thunderbird if I can't downgrade.

I foolishly upgraded to 115.5.1. The new interface is more cluttered and takes up about 30% more space than the old interface. The bar at the top is wider, the bar between the email list and the email contents is wider. The side bar on the left which lists the folders is wider. And all this is happening even though I have "density" set to maximum. Furthermore, my favorite add-on is suddenly no longer working and I can't find a way to restart it.

What I need is this:

  • Please tell me which version prior to 115.5.1 is the most stable and doesn't have any of the interface changes that 115.5.1 has. (How do I find out the number of the last version I was using?)
  • Please give me detailed instructions on how to download such version and downgrade. I am NOT a computer person and I need clear instructions.

Thank you.

Asked by Purebeads 5 izinyanga ezidlule

Last reply by david 5 izinyanga ezidlule

Closing email account - how to keep my emails? Are they stored locally?

I've got a long-standing email account that will be closing in a month and I need to keep all the emails on it... I'm not technical! Are they kept on my laptop, or just o… (funda kabanzi)

I've got a long-standing email account that will be closing in a month and I need to keep all the emails on it... I'm not technical! Are they kept on my laptop, or just on the server? If the latter how does someone who's not technical go about getting them local, and also able to access them again through Thunderbird ideally? I've tried to look at old posts but they are quite technical generally so I'm looking for a bit of hand-holding/easy instructions :)

Asked by neary 3 izinyanga ezidlule

Last reply by david 2 izinyanga ezidlule

sending emails to Gmail accounts.

Thank you for your help! I have been using Thunderbird for 5-6 years now and just last night any emails I send to my Gmail contacts gets bounced back. They can send me em… (funda kabanzi)

Thank you for your help! I have been using Thunderbird for 5-6 years now and just last night any emails I send to my Gmail contacts gets bounced back. They can send me emails but I can not loner send them emails. I receive the below message which it looks like the issues is DKIM and SPF. I am not tech savvy so I have no idea how to fix this. Any help with be MUCH appreciated!!!


<<< 550-5.7.26 This mail has been blocked because the sender is unauthenticated. <<< 550-5.7.26 Gmail requires all senders to authenticate with either SPF or DKIM. <<< 550-5.7.26 <<< 550-5.7.26 Authentication results: <<< 550-5.7.26 DKIM = did not pass <<< 550-5.7.26 SPF [cypressop.com] with ip: [216.55.147.161] = did not pass <<< 550-5.7.26 <<< 550-5.7.26 For instructions on setting up authentication, go to <<< 550 5.7.26 https://support.google.com/mail/answer/81126#authentication z26-20020ab0681a000000b007cd9db0d28asi804223uar.194 - gsmtp 554 5.0.0 Service unavailable

Asked by jeff254 4 izinyanga ezidlule

Last reply by david 4 izinyanga ezidlule

Your Thunderbird profile cannot be loaded. It may be missing or inaccessible.

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 wor… (funda kabanzi)

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.

Asked by Frank 3 ezinsukwini ezidlule

Last reply by david 1 usuku oludlule

Can't change server settings. Deleted email account returns on restart. Added account disappears.

I switched my email host and am trying to change the account settings in Thunderbird. When I change the server name a popup appears and asks me to restart or cancel. It d… (funda kabanzi)

I switched my email host and am trying to change the account settings in Thunderbird. When I change the server name a popup appears and asks me to restart or cancel. It doesn't let me continue to change any of the other server settings. Selecting either option changes the server name back to the original.

So I delete the email account and its smtp server. When I restart they both reappear. When I add a new email account and smtp server, it disappears when I restart.

When I select Help/Troubleshooting Information the deleted accounts are gone from under Mail And News Accounts. When I restart Thunderbird, the deleted accounts and server returns.

I changed the settings for a different email account that is on a different host last summer with no problems. Thanks

Asked by ME405 5 izinyanga ezidlule

Last reply by Toad-Hall 1 inyanga edlule

Need solution for my last problem with Thunderbird 115+

I have finally achieved a good font size for email written in plain text. But a good third of my emails are from newsletter subscriptions that are written in html format… (funda kabanzi)

I have finally achieved a good font size for email written in plain text. But a good third of my emails are from newsletter subscriptions that are written in html format. In settings/composition, I have changed the setting to HUGE after trying all the other options in the drop-down list.

Nothing works. Couldn't we go back to the old standby - Cntl +? It's simple/stupid, and you don't have to go hunting throughout all the menus (that aren't coordinated in any way)?

Asked by bdjim 4 izinyanga ezidlule

Last reply by david 3 izinyanga ezidlule

Thunderbird custom colours for text

Is Thunderbird ever going to fix the 'custom colours'? After the last major update, TB would not longer hold any custom colours. This is problematic because the colours o… (funda kabanzi)

Is Thunderbird ever going to fix the 'custom colours'? After the last major update, TB would not longer hold any custom colours. This is problematic because the colours offered are either too light or too dark to be read easily.

Asked by Pashta MaryMoon 2 emasontweni adlule

Last reply by david 1 isonto elidlule

Can I save all account settings in a file to restore to a new Win 11 installation?

Hello, I'm having various problems with Win 11 and, before anyone says it, I can't run setup from the iso as a repair (this is one of the problem). So am finally thinking… (funda kabanzi)

Hello, I'm having various problems with Win 11 and, before anyone says it, I can't run setup from the iso as a repair (this is one of the problem). So am finally thinking of biting the bullet and doing a clean instal. What I always find to be the biggest bedbug is setting up Thunderbird again, since I have about 6 accounts. Is there an easy way of making a copy of al the account settings to restore? Alternatively, do I simply copy back the profile(s)?

Asked by Tombarkas 3 izinyanga ezidlule

Last reply by Matt 3 izinyanga ezidlule