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Yesterday my Thunderbird was sending but NOT saving sent messages. I was receiving all messages. Today, however, I CANNOT RECEIVE or SEND messages. I have used Thunderbird on this computer for years . . . what has happened?

I would appreciate your help. Win Dawson

My wife and I each have our own Thunderbird accounts. They were created a long time ago, at different times. I’m pretty sure that they were not set up identically. She has recently experienced a problem: the number of new emails downloaded (as shown in the lower left corner of the screen) doesn’t match with the number of new and unread emails listed in the Inbox (the emails shown in boldface). Something else, though I think related: In the upper left corner of the screen, on the same line as the word Inbox, is a small circle with a number inside. I think that number gives the number of unread emails in the Inbox. Her number shows 20 but the actual number (boldface) is 15. Is this a serious problem? Is it a problem at all? If so, how to fix it? Thanks.

how can i stop thunderbird from interacting with windows defender anti virus scan? when ever i download or delete emails i get a few seconds of "not responding " and the whole computer is non responsive. i used to be able to turn off real time scan in security and it would work for a day and then windows would enable it again. now since the last upgrade windows isnt allowing me that option any more. solutions?

Cox Communications recently discontinued its e-mail services but provided a simple, direct transfer path to Yahoo Mail. The transfer retained the '@cox.net' referent in the e-mail address -- e.g., 'myusername@cox.net' -- to make the transition to Yahoo Mail seamless for all correspondence. The new Yahoo Mail username also now includes the '@cox.net' referent -- e.g., the former 'myusername' under Cox is now 'myusername@cox.net' under Yahoo. The transfer was successful, and e-mail send & receive functions for all of my old Cox accounts now work on the Yahoo Mail servers -- but ONLY in Yahoo's webmail.

in order to get Thunderbird to recognize my existing accounts under the new Yahoo regime, I went to 'Set Up Another Account > Email' and entered the required information, as illustrated in the attached screenshots. (See attachments 01 & 02.) The Set Up procedure initially found the old Cox server settings, apparently from Mozilla's archived data for the account. I Then performed a manual configuration, and, as indicated in the attached screenshots, the Set Up procedure also successfully found the new Yahoo Mail servers. Success, right?

Wrong! When I restarted Thunderbird, the new Yahoo Mail server settings were in place, but the username had not been updated -- it lacked the '@cox.net' suffix. After manually amending the username and again restarting, the new server settings and amended username were in place, but connection to the Yahoo servers failed repeatedly. (See attachment 03.) A second round of the 'Set Up Another Account > Email' procedure revealed that the archival Mozilla data had not been updated -- it still pointed to the old cox.net settings -- and a second manual configuration led to the same results as the first: Thunderbird failed to connect to my account on the Yahoo Mail servers.

I then looked for a way to completely remove the existing account from Thunderbird, and then to create a new account from scratch for the existing account on Yahoo Mail. I consulted Thunderbird online support advice [ref. 'Close My Account - https://support.mozilla.org/en-US/questions/1395523 ]:

"If you created a mail account in Thunderbird for a particular email address to download emails from server then you can easily remove it ( Menu icon > Account Settings -- Select name of account in Left Pane -- Click on 'Account Actions' -- Select :'Remove Account'. -- Restart Thunderbird. ),"

However, I could find no 'Remove Account' selection anywhere in the version of Thunderbird that I am using (ver. 115.9.0 - 64-bit)!

Please explain what I must do:

   1. to make an existing Thunderbird account originally set up for an old '@cox.net' address hosted on Cox servers now connect to a new '@cox.net' address hosted on Yahoo Mail servers; 

or, alternatively,

   2. to remove all traces of an existing Thunderbird account originally set up for an old '@cox.net' address once hosted on Cox servers, and then to set up a new Thunderbird account for the same '@cox.net' address now hosted on Yahoo Mail servers.

___________________

About 3-4 days ago, images no longer appeared inline and there isn't a button to show images, just an empty box. My T'bird is set to auto update, so not sure if an update caused this? Not sure if it's related, but at the same time, my rss feeds stopped due to "invalid security certificates." I did not make any changes to previous settings. Thanks for any suggestions!

I am asked to get a new password from my mail server (AOL) every day when trying to send messages. Have to log on to AOL, ask for app password, enter at Thunderbird. DAILY!

When receiving emails they appear as normal but in the background is another email of a couple of pages which has sender and receiver details at the top then lines of letters making no sense for the rest of the message.

I have set up my own domain guytec.org using Namecheap. The alias for email is tguy. I have pointed this new email to my gmail address. I can receive emails into my thunderbird Gmail box from tguy@guytec.org. I want to write emails with sent from tguy@guytec.org showing? How??

TB v115.9.0 unwanted https: links have started to appear in most relevant text of TB emails that I receive (underlined and in blue)

Home <https://xxxxxxxchen.co.uk/> -- a quick and easy meal <https://xxxxxhen.co.uk/air-recipes/>? these two links were not included in the original messages. any advise please?

Hi. When replying to an e-mail, Thunderbird has started to place to input cursor in the TO field instead of the message text field (in this case it should be before the answered text).

Any ideas? BR Johnny

Using 115.10.1 and POP on Windows 10 Pro (v. 22H2) with just the Windows built-in virus protection enabled (but App or Browser Control is disabled). Platform seems stable, no evidence of nefarious services noted in task manager.

Realized the emails in InBox from a couple of days ago (and going back decades) were blank or had mismatched headers to content. Figured an index problem. Ran the Repair under 'InBox' folder Properties, and only a few of the most recent emails remain - all duplicates of which I had sorted into other folders.

All the other folders are fine - just my InBox got wiped! Looked in the Thunderbird folder under profiles and saw the above captioned with a time-stamp that captures the approximate time this went down - occum's razor. I did not initiate any update to Thunderbird.

Walking on eggshells and very nervous, we're talking thousands of emails, what is the recommended recovery of the InBox (after I attempt to backup what I have left). Thanks!

Today, most of messages have suddenly disappeared from my TB inbox, leaving only the most recent 105 out of approx. 18,000. I have not performed any operations (compacting, archiving...) that could have caused this.

I immediately invoked the 'Repair Folder' command, which did not resolve the problem. Further investigation revealed that the 'Inbox' file ('Profiles' folder) actually contains only 105 messages - seems like the 'Repair Folder' truncated the file!

Fortunately, all the messages are still on the server. My question: Is there a method to 'force' reloading of the missing messages?

Thanks, Ray

I was able to change some of my message pane background by adding the following to the userContent.css file:

/* Thunderbird userContent.css */

@-moz-document url-prefix("imap:"),url-prefix("mailbox:"),url-prefix("news:") {

 body {
   background-color: #404552 !important;
 }

} @-moz-document url-prefix("about:blank?compose") {

 body {
   background-color: #404552 !important;
 }

}

I also tried adding the following to my userChrome.css file: /* Message pane */

1. msgHeaderView {

 background-color: #404552 !important;

}

1. messagePane {

 background-color: #404552 !important;

}

Why do I still get these two dark gray areas (see attached)? What css do I need to add to get them to be the lighter grey?

Using windows 10, windows firewall, windows antivirus, Thunderbird 115.9.0 (32-bit)

Can't send from Optimum accounts.

Error message "Sending of the message failed. An error occurred while sending mail. The mail server responded: Spam detected by content scanner. Message rejected (ID 661FD756017B2BC6). Please check the message and try again."

Check outgoing server setting, tried changing authentication method, but got the same error.

Hello, I am trying to send emails from my iCloud account and it always fails due to the SMTP server timing out. I've tried making a new app-specific password, deleting and re-adding the account in Thunderbird, and made sure the authentication settings are right, but it still doesn't work. I can connect to the IMAP server just fine.

Hi, in the past couple of weeks as I am moving selected emails from my Inbox to their Folders, the remaining emails in the Inbox have disappeared (twice)Most recently this Monday. I was able to have Yahoo recall /restore many of them Wednesday. Then Today Friday April 26; I selected an email in the Drafts Folder to Edit, by selecting the Edit button and it disappeared.

This all seems ODD. I have not changed any settings or done anything different. I have lots of storage on the Hard Drive. Would you kindly assist yours dennis