Thunderbird Community Forum

In Thunderbird, how can I stop text in the previous emails in a string turning blue?

I have looked everywhere in Settings where colour is mentioned and everything is set to black text on a white background. Nothing is set to blue.

I do not want to see blue text anywhere.

Please advise.

Need help setting up my domain name with godaddy and Thunderbird email client. need to get DNS Records from godaddy also. Having more trouble with this than I should, I think. I have already setup an email account on Thunderbird with earthlink/mindspring and icloud. No problems at all, in fact, both were very simple. But no so much with the domain name and godaddy. Any assistance will be greatly appreciated.

I use k-9 email on android phone and tbird on desk top.

I have messages on K9 I need to read on desktop but the don't appear on tbird client even though they are clearly visible on k-9

I tried to forward it but even tho k9 appears to send it is not delivered when I look in tBird

I need attachement.

Is there a maximum number of addresses to which an email can be sent? If so, what is this number? If a mailing exceeds the program's limit, how do all of the addresses receive the mail? I wish to send an email to approximately 175 addresses.

Thank you.

Hello I want to use import-export tool and it is not possible now ? Please repair the function. thanks/CG

Moderator note (Denys): This question has been moved from the Firefox desktop forum to the Thunderbird forum.

Can not send emails to a newly created outlook.com (free) account. Have tried dozens of different settings, approaches.

My current setup:

 - windows 10
 - thunderbird 140.8.0esr (64-bit),  numerous previous versions also do not work
 - outlook.com (free) account mail provider
 - POP3 enabled (tried IMAP enabling also) on outlook.com account
 - no 2FA or 2FA enabled on outlook.com account, no difference
 - outlook.com web access works fine
 - followed instructions in mozilla support article Microsoft OAuth Authentication and Thunderbird in 2024 
      (https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202)
 - have done a fresh install on a new machine without an existing profile.
 - have tried various microsoft servers, have tried oauth2, normal password
 - thunderbird account creation works just fine.
 - server settings and SMTP settings match as recommended by support article noted above
    SMTP server settings
        server name: smtp-mail.outlook.com  
        port: 587
        connection: STARTTLS
        authentication: OAUTH2
        user:  xxxxxxxx@outlook.com

symptoms:

 - receiving(downloading) emails works fine.
 - sending emails fails with following messages
     Login to server smtp-mail.outlook.com with username  xxxxxx@outlook.com    failed    followed by 
           Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 
             'Authentication method' in 'Account Settings | Outgoing server (SMTP)'

Many people seem to be having this issue with no resolution.

Please help.

After I open an email and/or reply to it, the alert stays on at lower right. I read a great many emails every day at work and having to turn off the alert manually wastes time. How can I set the alert to go off when I've read a new email?

I have been using our work Mozilla Thunderbird account for two years and in all that time we have been unable to send emails from our usual email address (sales@freunduk.com) to anyone with a Gmail account. We get no bouncebacks and no indication to say that the email has not been received. Everyone else with other types of email account such as Hotmail or Outlook etc get our emails, but for some reason Gmail is blocked. We send invoices, quotes etc from Mozilla and for anyone with a Gmail account, not receiving our email is very inconvenient. We have put customers on stop for non payment and then realised they haven't received our invoice via email because they have a Gmail address. Can anyone shed any light on the matter please? Is there a setting we are missing which needs changing? I have tried to search previous questions on the forum but nothing has been obvious. All help appreciated.

A "send later" button came up one morning instead of the usual "send" button. When I clicked on the write button to see where the "send" button was, several choices came up but when I clicked on the "write" choice I lost the other choices and now can't get back to the original write button and still no "send" button appears anywhere on the menu. I can save messages to Draft but still can't actually send them. I can still receive emails, just can't send them! Help!

I need to migrate from Outlook 2010 to Thunderbird latest version. There are multiple email accounts configured in Outlook and tons emails. This is my wife's system so I don't want to make a mistake doing the conversion.

I intend to use a automated tool if a reliable on exists - paid is fine. I need to get all of the accounts and associated outlook folders moved to tbird. Also need contacts migrated. Some of the Outlook accounts use POP3/SMTP, some use IMAP.

What is/are the best migration tools? Recommendations welcome. What traps do I need to avoid? What is the recovery process if it all goes wrong.

I have 50+ years IT experience and have used tbird for 10 years so I'm not clueless.

Thanks in advance.

Hello there,

Using POP3 protocol I receive only the email metadata. It used to work before, it is happening for the last 2 days. See below. It works if the account is created as an IMAP, but this is not what I want. And another thing, it works properly with EM Client latest version that I installed.

Thanks, George

X-RG-Rigid: 684FABBC0C25E40 . X-RazorGate-Vade: 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 X-RazorGate-Vade-Verdict: clean 20 X-RazorGate-Vade-Classification: transactional-account Received: from a59-51.smtp-out.us-west-2.amazonses.com (54.240.59.51) by cmx-torrgi004.bell.net

       id 684FABBC0C25E407 for gdonisan@sympatico.ca; Wed, 13 Aug 2025 14:45:00 -0400

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/simple; s=6ujb3doj4mwbngmp2xjutilwl4zbdio3; d=firefox.com; t=1755110699; h=From:Sender:To:Subject:Message-ID:Date:MIME-Version:Content-Type;

mon compte [edited]@numericable ne peut plus recevoir de message. on me demande le mot de passe de pop.numericable. Sur les paramètres de sécurité j'ai SSL/TLS et authentification "mot de passe normal". je ne sais pas comment faire pour retrouver ma situation fonctionnelle. Merci de votre aide. Envoyer vos réponse sur mon autre adresse mail [edited]@gmail.com ou un sms au 0033[edited]

My send email button has dissapeared . I am unable to send any emails. Geek Squad has spent several hours trying to get my email send button back. They say there is a glitch in Thunderbird. Please fix it. My phone number is [edited phone# from public support forum]

I use the email address [email 2 removed]@interia.pl. The account is configured in Thunderbird on a Lenovo laptop. The laptop is protected by ESET Smart Security antivirus software. As recommended by Eset, I added ESET VPN to my protection. After enabling ESET VPN, the address doesn't configure. It requests a password. I receive messages that the server is disconnecting. Other addresses work. Disabling ESET VPN causes the address to work. This problem doesn't occur on my other Outlook email client. I would appreciate your help in resolving this issue. Sincerely, Paweł Jędrzejewski

When my message filter uses the "Reply with Template" action, the reply e-mail is always PGP encrypted, even when I do not have any public key for the recipient e-mail address. As a result, the reply e-mail is always corrupted.

I am using Thunderbird 140.7.1esr on Windows 10.

I have attached a screenshot of what the reply e-mail always looks like.

In the Template that I am using, the "encrypt" button is not selected, and in the OpenPGP menu of the Template, the "Encrypt" menu item does not have a checkmark next to it.

Does anyone know how I can get Thunderbird to send reply e-mails without using encryption?

Hi everyone,

I recently lost access to some important emails in Thunderbird after a crash. While searching for solutions, I came across AftermathInvestigations.com , which offers professional help with investigations and recovery — it reminded me how important it is to protect and recover valuable information.

Does Thunderbird have a recommended method or tool for safely restoring lost emails without risking data security?

Thanks!

Why is everything broken after an update? So annoying and prevent me from making a donation.

There are 3 buttons, none of which are useful.

Can anyone free me of this Welcome to Freedom?

I am unable to send emails from Thunderbird. Getting the message: An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Connection from xx.xxx.xx.xxx refused.

When I check my password under "Tools - Security', I only see a password listing for my 'incoming' server [that I do not have a problem with].

My out-going server setup has "Authentication" as normal password. When I try to send an email, Thunderbird does not ask for a password. Is it possible the error message refers to lack of a password? If so, is there anyway to manually add an STMP password to Thunderbird?

I am having a major issue with Thunderbird not saving Outgoing emails in Send Folder with IMAP setting.

Having three mailboxes two are set to IMAP and the third set to POP3. The IMAP outgoing mail creates an alert that mail was sent but copy not placed in your Sent folder due to network of file access errors.

Outgoing mail in POP3 save immediately to the Sent folder.

I am using the latest Thunderbird update:

• Server Type: IMAP Mail Server
• Server Name: IMAP.kinect.co.nz
• Connect Security: SSL/TLS
• Authentication Method: Normal Password

Outgoing Server [SMTP] Settings:

• Description - User name
• Server Name: smtp.kinect.co.nz
• Port: 465
• Connection security: SSL/TLS
• Authentication method: No authentication

Note: Authentication was changed form Normal Password in order to gain some traction on the issue during trouble, cause and correction actions.

Addendum: The PC was fitted to Starlink https://en.wikipedia.org/wiki/Starlink in preparation for use as sole source for internet connection. That was abandoned due to email issues.