Thunderbird Support Forum

I have three different computers that I can use Thunderbird to access my hotmail account. All three computers can have the exact same server settings. One computer refuses to send emails unless I cancel the send and immediately resend.. Thunderbird ver 115.10.1 (64-bit) Windows 10 Home Ver 22H2 IMAP Mail Server outlook.office365.com Port 993 Connection Security SSL/TLS Authentication 0Auth2 Outgoing SMTP Server smtp.office365.com Port 587 Connection Security STARTTLS 0Auth2 Take Note All three machines can have identical settings listed above or various changes like Normal Password instead of 0Auth2 and/or an Outgoing server can be smtp-mail.outlook.com with normal password or 0Auth2... One computer must be cancelled will sending and when resent, it goes... no problem...immediately. If I don't cancel and wait, for it to send on the 1st attempt, it will eventually timeout on the outgoing server. Then I might have to reenter a password. Very annoying. I have been doing this for years. It is my workaround....

I deleted Thunderbird, than Installed latest version. Now in Thunderbird "Use Primary Password" is clicked so I can't reset primary P/W. Previous P/W doesn't work because there is no P/W there as far as I can see. Instructions I found: "Tools> Developer Tools> Error> etc. There is no "Error" button. Instead I get Incoming Connection (attachment) and an other screen that I don't understand. Can you help please? Thank you Ilio Pieroni

I used to be able to select a range of e mails using the cursor to select the first e mail and then press shift key and the last email with the cursor to select the range of e mailsin my inbox to delete them. I could use the delete key, the button in Thunderbird or right click to bring up some functiosn such as delete selected messages. When I do this now the messages, which are normally unread, show as read but have not been deleted. I try again with the now read messages but they still will not delete. Its fustrating

I have had Thunderbird email account for years and now I have problems getting my emails to come through on a regular basis. I have to shut down my PC and then restart to get emails to come through. What is the problem. Thanks, James Craig Herring

The font size for the whole display is far too small. Also the viewing panel for each email is far too narrow but the text when writing emails is huge. Should I go back to an earlier version?

I drag-n-dropped an account (POP3) folder "inbox" to the "Local Folders". How can I return the "inbox" folder back to my account folder ? Drag-n-droping back does not work.

New computer since a week ago. Thunderbird was fully functional the first days. Not using the computer for last 3 days.

Now is the internet connection in Thunderbird only works in troubleshoot mode

How can i detect the the reason for the problem. Even the check for Update in The About fails with connection times out. Can´t access any of may mail accounts all fails. Unblocked Thunderbird in Firewall and Virus Running Windows 11 with latest updates. Thunderbird version 115.10.2 (64-bit)

My internet provider in Phoenix, Cox, has now handed its email services over to Yahoo. Prior to this, I accessed my Cox email (@cox.net) using Thunderbird. I am a technological dinosaur and am trying to figure out how to migrate my new Yahoo email to Thunderbird. I had a friend set up my Cox mail in Thunderbird but he is not available now. I am clueless how migrate my Yahoo mail to Thunderbird. I appreciate any help that the community can give me.

when i open the message Todd sent i get this and i do not know why see attachment how do i stop this from happening I do not understand what is going on with my thunderbord

When TB starts up, the only folders I can see are Recent. I can go to View/Folders and click ALL, and as soon as I move the mouse away from that menu item, it switches back to Recent. This started on version 115.09, but persists after I've "upgraded" to 115.10.1.

It has now (5/3/24 17:25 CDT) been 2-1/2 days since I submitted this problem, and no one has responded that it has even been noticed, much less solved. One of my two email accounts is a POP3, and the other is IMAP. The IMAP account Inbox doesn't even show up on the TB home screen. (If that info is of any help).

PLEASE ADVISE. My emails are an integral part of my business, and I cannot get to almost any them.

Thanks, rehawkpe

I have seen numerous posts on this forum involving the "Leave Messages on Server" option in the server portion of the Account settings. Many of these posts include responders stating that this option does not apply to POP servers.

If this is correct, why does Thunderbird even include this setting for an account that is explicitly designated as a POP server/account? This is an invitation to confusion and misunderstanding; I have been a victim of this. It seems to me to be a no-brainer to change the code to remove this option from these POP accounts.

I am unable to copy text and paste from body of email in Thunderbird. I was able to in past versions. When I right click after highlighting text all options appear but does NOT allow to copy anything.

I use Thunderbird to manage my single email account. It is not a gmail account. I have received emails from others with a gmail accout, but my replies are not received by them. New emails from me to a gmail account are similarly not received. Any ideas on how to configure Thunderbird to handle this problem?

Over the last few weeks, emails have vanished from my inbox, as well as trash, templates and other mail boxes. In may cases, no emails are being displayed, when "total message count" shows messages are present. In other cases, several days of recent messages have disappeared.

I have tried "repair folders," deleting "smart mailboxes' and even deleting the .mlf file of one inbox without success.

I have 6 email accounts including 2 GMail. The problem is in all of them. As the screenshot shows, there is a disparity between total messages and displayed messages in all boxes (partial view of accounts).

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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?

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.

hello, how can i copy my Linux mint Thunderbird profiles over to windows 10? i get a copy alarm "can not copy symbolic link" when i try to copy the .thunderbird directory to my dos formatted usb drive. i do see that the linux profile directory has both imapmail and ImapMail directories. i believe this is the issue. when i am copying from linux to the dos usb drive, the error window askes to skip/cancel the directory it is troubled by. as both imapmail and ImapMail have the same size and file count, can i just skip one of the directories? is either better on the dos side? thank you for your time. Bara

'Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.btinternet.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'.

Hello

I have been using Thunderbird as my email service and not had this before. Yesterday, I had to change my password for emails with BT. I changed it on Thunderbird too but now I am receiving emails OK on Thunderbird it is refusing to send any for me and shows the above message. I can send OK from my web based BT email but prefer Thunderbird.

I haven't a clue what I need to do to solve this.

Can you please help? Please tell me is very simple steps I'm not very computer savvy.

Thank you

My mail is hosted on Hostpresto. Yesterday 'someone' (it wasn't me. I was in bed) gained access to my cPanel and email and deleted my only email address, then installed their own. All my mail gone. I was stupid though - I opened another email address with the same name as the old one and started Thunderbird on the pc. Of course, it synchronised to the empty folders!

Luckily I have another instance of TB running on another machine and it's all there - I am not internet connected there!

How do I bring the folders containing all the old mail from the 'safe' machine's appdata/roaming/thunderbird location to what will be my 'working machine' without it immediately synching to the server and deleting it all?

Thanks Andy