Thunderbird Community Forum

Thunderbird 128.6.0esr (64 bit) can obtain access to my Google Calendar and Contacts but not to email. This is a clean installation on a brand new Windows 11 computer. I have reinstalled Thunderbird three times, deleted saved passwords, deleted only the SMTP and IMAP saved passwords (preserving OAuth2 passwords), deleted Thunderbird's access in Gmail security settings to force it to re-request access, followed every instruction on every forum and help page I can find, but Thunderbird refuses to send and receive mail. Thunderbird finds the correct configuration and sets it up (correct ports, IMAP, SMTP, correct servers, OAuth2, etc.) I used my Gmail address and the same password as I use for webmail.

I am presently using Outlook for Gmail because it connected immediately using the same credentials as I am trying with Thunderbird. When I delete access permission in Gmail security settings, then add Gmail to Thunderbird again, it prompts for access to Contacts and Calendar but not to mail (one time it flashed a screen saying it could not because Java is not enabled in my web browser--but Java is enabled on both my default browser, Edge, and on Chrome; the page that came up appears to be some internal browser in Thunderbird).

The attached images show the configurations for IMAP server, the SMTP server, and that the saved passwords contain two OAuth2 URLs, one for contacts and the other for the calendar, but nothing for mail.

I have been using Thunderbird for years, and have a massive archive of emails in it, would really like to use it as my email client rather than Outlook. Installation and configuration has never been this difficult. Does anybody have any thoughts on what to do next?

I've accessed my email account william.cleghorn@btinternet.com for years without problems. I recently had to change the password, when helping my wife to recover from a hacked email account. Since then, a box persistently appears on my screen, asking for my password, which it then rejects, saying 'log-in failed'. I can't get rid of the box, which keeps reappearing. Please advise

If I preview an email in the android gmail app, Thunderbird won't download the email. I guess it won't grab read mail from the server.

I would like when I delete mail via Thunderbird that it be deleted from the server. I do not delete them from my phone. I only preview.

Is there a setting in Thunderbird to allow read email to download or would it wreak havoc? My workaround is to mark emails unread from within the gmail app.

In transferring my profile from PC to laptop, something went wrong and I lost all of my local folders, with years of emails in them. I have searched all parts of the Thunderbird folder under Roaming, and have been unable to find the folders.

The weird thing is that when I do a search for a particular subject or email that I know was in one of the local folders, the search still gives results showing the email headings. It will, however, not display the results as a list or open any of the emails.

The fact that the folders and emails appear in the search leads me to believe that they are still somewhere on my PC.

Does anyone have any advice on where they might be or how to find them?

I have two outlook email accounts. With both I get the error: "unable to log in at server probably wrong configuration username or password "

Username and password are correct because a mini browser window pops up, asking me to allow Thunderbird as an authorised program to access my emails.

Configuration matches what's on here: https://support.microsoft.com/en-us/office/pop-imap-and-smtp-settings-for-outlook-com-d088b986-291d-42b8-9564-9c414e2aa040

Also the details are found correctly from probing the server anyway.