送信できません - Unable to send

突然、どこにもメールの送信ができなくなってしまいました。 受信はできます。 KDDIを使っていますが、問い合わせしましたが、サーバーに問題ありません。 Webメールでは送信できます。 Thunderbird側の問題のようです。 添付のようなメッセージが表示されエラーになってしまいます。 解決策を教えてください。 Suddenly, I c… (læs mere)

突然、どこにもメールの送信ができなくなってしまいました。 受信はできます。 KDDIを使っていますが、問い合わせしましたが、サーバーに問題ありません。 Webメールでは送信できます。 Thunderbird側の問題のようです。 添付のようなメッセージが表示されエラーになってしまいます。 解決策を教えてください。

Suddenly, I can no longer send emails anywhere. I can still receive emails. I use KDDI, and I contacted them, but they said there are no issues with their servers. I can send emails using webmail. It seems to be an issue with Thunderbird. The message shown in the attachment appears, and I get an error. Please let me know how to fix this.

Open 8 25

Need classic view -- no longer available

Have just downloaded Tbird to a new PC. Only view I can choose is a totally useless Vertical View. Unusable. Can I download a previous version? I have no need for… (læs mere)

Have just downloaded Tbird to a new PC. Only view I can choose is a totally useless Vertical View. Unusable. Can I download a previous version? I have no need for pgp security. Will classic view be coming reasonably soon? Can I somehow upload a profile from the old PC? I Will download if possible and if you tell me how. Otherwise it will have to be bye bye Tbird and use Outlook. Hoping you can help me. Thanks, Gordon X@gmail.com

(PII redacted by moderator)

Open 2 1 14

All my emails are gone, local folders and even starred messages - oldest msgs are 26/03/2026

I will preface this with no I do not have a backup - which is my fault. However I did not expect my account to be nuked into oblivion with no explanation. As per the titl… (læs mere)

I will preface this with no I do not have a backup - which is my fault. However I did not expect my account to be nuked into oblivion with no explanation.

As per the title, all my emails are gone. My local folders are devoid of anything I can use and am hoping that everything may be on a server somewhere. This is years of emails, important correspondence, bank information, business, etc. The ONLY thing I can think of is when I download the TB app for android and sync'd it using the QR on the desktop version of thunderbird. I then checked stuff the next day and everything was gone barring emails from that day, all folders, everything was gone. Is there no way to recover this?

Open 6 3

Change Firefox back to asking for password instead of windows credentials.

When I want to view passwords Firefox is asking windows credentials which I don't have. Now I can't get access. It used to ask for my Firefox password what happened. … (læs mere)

When I want to view passwords Firefox is asking windows credentials which I don't have. Now I can't get access. It used to ask for my Firefox password what happened.

Open 3

How to change Thunderbird e-mail account password

My internet provider has required a new account password for my wife’s Thunderbird account. We have changed the account with the provider, but I cannot figure out how to … (læs mere)

My internet provider has required a new account password for my wife’s Thunderbird account. We have changed the account with the provider, but I cannot figure out how to change it in Thunderbird so she can logon and send email without having to re-enter the password each time. Several online searches have provided various “solutions” that lead to non-existent menu choices.

This shouldn’t be this hard! Is there a way to address this with a phone call to a knowledgeable real human being??

Open 1

Migrated from Windows 10 to Windows 11 and can't send any emails but receiving fine.

I recently bought a new laptop and upgraded from Windows 10 to Windows 11. I am a Spectrum user for my email server and Thunderbird as my client. All of my IMAP setting… (læs mere)

I recently bought a new laptop and upgraded from Windows 10 to Windows 11. I am a Spectrum user for my email server and Thunderbird as my client. All of my IMAP settings are correct according to Spectrum support. For some reason I can only receive email messages send to me but cannot send any out, including to myself. When I try to send anything it times out. What is the problem?

Open 1 3

Ticket ID 400399

This is the third time I am sending this request for support. Here was my original request: "I am a Spectrum user for Internet/email in the US. I recently migrated from … (læs mere)

This is the third time I am sending this request for support. Here was my original request:

"I am a Spectrum user for Internet/email in the US. I recently migrated from Windows 10 to Windows 11. On both platforms I am a Thunderbird user for my email client. My settings are for IMAP (port 993 for incoming and 587 for outgoing) on both Spectrum and Thunderbird. Since migration I am no longer able to successfully send messages but am receiving fine. I have been on Spectrum's help desk and can successfully send and receive messages but when I try to send anything from Thunderbird the send request fails after several minutes. I need help! This is very frustrating."

The first time, I received a response from Manu Audino (Mozilla Support) who told me that his team's responsibility is to assist with restoring access to Mozilla accounts and subscription services. Manu gave me the link for Thunderbird support which is took me here. So I ask again for support to resolve my problem for sending out email messages. Since sending another request for help I have received nothing. I need help!

Open 1 1

When Exporting Address Book saved email addresses exceeding two are not exported. Why?

Recently, I exported my Address Books, i.e., Personal and Collected as CSV files. Looking through those files I discovered that not all "Fields" from the Address Book had… (læs mere)

Recently, I exported my Address Books, i.e., Personal and Collected as CSV files. Looking through those files I discovered that not all "Fields" from the Address Book had been included during export. Some of my contacts include three or four email addresses. The CSV Header added to the top of my exports only shows "Primary Email" and "Secondary Email" in the Header. There may also be other Fields of information that are not exported, but I haven't looked and, frankly, didn't expect to have to check my exported files. When editing a Contact if that contact has more than two email address I expected those to be part of the export file. I am running the current version of Thunderbird on my Windows 11 computer and an earlier version on a Windows 7 computer. Both versions of Thunderbird do not export all Field Data from the Address Books.

Open 1

Suspicious activity detected on my account and I've been logged out, so I wanted to know someone tried to hack?

Hi community, I have received an email from Mozilla firefox that Suspicious activity detected on my account and I've been logged out. So I wanted to know are my details a… (læs mere)

Hi community,

I have received an email from Mozilla firefox that Suspicious activity detected on my account and I've been logged out. So I wanted to know are my details and p/w are vulnerable. Someone tried to change my email password and I received OTP. so what are precautions and threats are involved now and what I have to do precautions.

Regards, kashif

Open 1

after firefox update instagram and facebook not working properly on browser

since updating my firefox browser I am having trouble with both instagram and facebook. The pages won't load regularly and when they do load - it is only partial pages. H… (læs mere)

since updating my firefox browser I am having trouble with both instagram and facebook. The pages won't load regularly and when they do load - it is only partial pages. Have tried to find solutions to fix this. These are the only two websites that I'm having an issue with. What can I do?

Open 1

I use the latest versions of firefox and expressvpn for linux but the vpn won't work with firefox?

Hi. I run Pop_os 24.04 linux and have run the latest updated firefox for linux and the latest expressvpn for firefox and am not able to get firefox to connect with the vp… (læs mere)

Hi. I run Pop_os 24.04 linux and have run the latest updated firefox for linux and the latest expressvpn for firefox and am not able to get firefox to connect with the vpn "on". It did work a week or so back but not now. With the vpn on, firefox takes at least 15 seconds to load. I've run the troubleshoot mode and it didn't help. Are there settings on firefox that could be the issue or is it a vpn problem? Thanks

Open 1

I seem to have lost all my emails, probably a slip of a finger.

I seem to have caused my emails to disappear completely. I cannot find them anywhere on my macbook. I don't think there has been anything unusual from outside sources. I… (læs mere)

I seem to have caused my emails to disappear completely. I cannot find them anywhere on my macbook. I don't think there has been anything unusual from outside sources.

I fully expect that I am the cause of it, I am getting old and my so are my eyes and fingers.
Open 1