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Rarely fetches emails automatically at 15 minutes. I can fetch manually. This has been going on before the last update. I haven't changed any settings. Sometimes it fetches when I open the app. Other times I must fetch manually. Also, we should be able to fetch sooner than 15 minutes.

I'm dealing with a properly updated 'bird: 140.5.0 (32-bit) running on an equally updated Windows 10 desktop. First thing this morning, out of nowhere, I started getting an "unable to write the email to the mailbox..." message when sending, thus I could send but not save. And then I realized I wasn't receiving either, on all three accounts in my Thunderbird. I stopped everything and focused on trying to fix this. It's been an all-day, losing effort. So far.

I tried the various quick checks and fixes recommended here and there: I'm running the program as an administrator. I restarted the program. I rebooted the computer. I think I have enough disk space, but to be sure I deleted some bloat from possibly overly large files. I compacted, even though the program is configured to do that regularly. I temporarily disabled my antivirus program. I went into my webmail and deleted all messages that have arrived since my Thunderbird stopped receiving, in case one of them was corrupted. And probably some other attempts as well. Nothing has helped.

And now a second, even worse issue has fallen from the sky. Thunderbird opens. The folder list is where it always has been. The number of unopened messages in each folder is there in boldface, as always, but...the folders are all blank and I get the dreaded popup: "unable to open the summary file...." Have I lost my years' worth of carefully curated emails?

I've tried folder repair. I've deleted parent.lock. Etc. Nothing. Nothing. Nothing.

I will be super-grateful for any wisdom sent my way.

Hello all,

Thank you for Thunderbird mobile!

I get a message not sent error when doing the following on Android smartphone: - click an email address link - create email opens - send completed email

Expected result: Email goes to outbox and is removed after sending

Actual result: - email stays in outbox and error cannot send is displayed - when moving email to Entwürfe and send again the sending succeeds, but email is present twice in sent folder

Please have a look!

Best regards Gerrit

I believe I found a bug. When drafting an email and switching away from Thunderbird the draft email gets sent but still remains in the drafts folder.

I created two emails today and had to switch away multiple times to get some information to paste into the emails. Thunderbird evidently sent out the draft in its current format whenever I switched away from the app.

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]

Can not send emails through RoadRunner Mozilla Thunderbird. Can receive. Can send in Spectrum.net, so email account is working properly. Can send and receive with android phone, just not Mozilla. Can not check for latest updates.

I cannot set up my icloud email in Thunderbird.

Error implies that the password is incorrect but i know it's correct, i am able to sign in to webmail using it just to prove a point.

"Unable to log in at server. Probably wrong configuration, username or password"

I have verified server info on apple support and verified username and password is what i use on all other devices. Username and password also works on MS outlook.

I have Mozilla Thunderbird email application with Windows 11. Recently I have problems opening some email texts, but not all. I do receive the mails and heading, but the contents are not displayed. This goes for some mails, and I do not see any connection as to which ones open and which ones don't. I would appreciate your advise. Bo Dahlberg

None of the hekp found answers the questiin. Any sent email do not show in the folder. There seems to be no route to repair or otherwise corect the issue. Please advise with current accurate guidance

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.

I was able to access my Yahoo email with Thunderbird by using the OAuth2 authentication method. However, I am not able to send a email using the yahoo outgoing server. There is no selection for OAuth2 for the outgoing server. I get the message "The message could not be sent because connecting to Outgoing server (SMTP) yahoo failed." What do I need to do to be able to send email via yahoo?

Hallo,

ich komme seit Sonntag nicht mehr an meine Mails. Kein Abruf möglich obwohl richtges Passwort eingegeben wurde.

[edited]@alice-dsl.net

diese Adresse benutze ich schon seit über 20 Jahren.

Bitte dringen um Hilfe.

Mit freundlichen Grüßen Thomas Höppner

Hello - I suddenly cannot send or receive emails in Mozilla - if I go online and do it via the Spark App, it is working, so not my server.

Your advice please?

‘We formerly had our email with Cox Communications, and had used Thunderbird. Cox ended their email and said we should use yahoo.com and we could keep our email address, which is [edited] @cox.net.’ Can we still use [edited email from public forum] @cox.net for ‘Thunderbird’ as well? I definitely prefer Thunderbird!

My company uses your email software and everyones email is not working. For example, my email (madison.l@valleyhha.com) does not allow me to send messages without an error popping up (Your message was sent but a copy was not placed in your sent folder (Sent) due to network or file access errors. You can retry or save the message locally to Local Folders/Sent-madison.l@valleyhha.com.)

This goes for my entire staff of 20 people. Same error, also all my unread messaged in my inbox have now disappeared. Not only that but we are also not receiving any new emails either