Thunderbird Support Forum

I am using TB under Ubuntu 22.04 ONLY because Gnome Evolution is requiring OAuth2 for IMAPX accounts that don't provide such authorization. TB and Outlook 365 (under Win 10) don't have that problem.

TB has a major, major problem in that it will not keep constant font, font-size, and line-spacing when I write or reply to emails. Why can't TB hold an exact font size (e.g., Arial 11). and line spacing (single) when I compose or reply to emails. I have seven (7) email accounts and I should not have to worry about having to set properties for each.

Wish to add extra email address - Errors - Unable to log in at server. Probably wrong config, username or password. Click on IMAP Did not work Click on POP3 Did not work

Double checked - Name, email address and password by coping them and then pasting them in the boxes. I have one email working from the same supplier. incoming Host outlook.office365.com POP3 Port 995 outgoing Host smtp.office365.com Port 587 IMAP Port 993

Error message: "Sending of the message failed. The Outgoing server (SMTP) smtp.frontier.com does not support the selected authentication method. Please change the 'Authentication method' in 'Account Settings | Outgoing Server (SMTP)'." Can you help? Was on the phone with Frontier for an hour - they say incoming settings are correct (no problem receiving emails), as well as outgoing. We tested sending an outgoing message from their webmail server, which was successful. Thanks, dbleagle

when I receive a typed Email, The print is not visible. I have tried going into preference to reset defaults, but the setting reverts to what was previously there. White for color rather than black. Allan

I cannot send emails from Thunderbird. I am using MS Windows 10 and my ISP is comcast.net. My email provider uses MS’s Outlook servers. For years I had no trouble using Thunderbird. Even after my email provider switched to using Microsoft’s Outlook servers. But when I subscribed to Microsoft’s Office365 and accidentally opened its Outlook module/application I was no longer able to send out emails. I could of course receive and send emails when I logged into the web version of Outlook, but while I could still receive emails I could no longer send them via Thunderbird. When I installed the latest version of Thunderbird (78.14.0 (32-bit)) I was no longer able to even receive emails. However, when I set up a “new” account (and used the email provider given password, which works at the web version of Outlook) and switched from POP3 to IMAP I was able to receive emails again, but I am still unable to send emails. I have tried numerous settings for my Outgoing Server (SMTP). None have worked. So my questions are: 1. What are the appropriate SMTP settings? I’ve tried so many, so I’m not providing the current ones. I’d like to start with a clean slate! 2. Are there any settings elsewhere that I need to tweak? 3. Why can’t I see (and alter if necessary) my password in my settings? (I assume they are still the appropriate ones that I inserted when I set up my account again.) However, even when I manually insert them after an error message and a form asking for my password they do not work. I’ve tried it with my antivirus and firewall protections (Webroot & Windows) turned off. SC

My email account with Thunderbird was working fine until I rebooted. Now I'm getting the Account Setup page when trying to launch Thunderbird . As I am not a technical person , I need step-by-step instructions how to restore my email account . Your help is much appreciated .

I have started to have emails disappear from my in box. I have been in touch with my internet provider with no luck as they think it may be some thing with in your system. I am not what you would call computer literate so I have no idea what is going on. Any help will be gratefully received Regards Geoff Chatfield

The spell checker is constantly using English (USA) and not English (UK). No matter what I set it to it reverts. I suspect every time there is an update it does this and it is extremely annoying for anyone living this side of the pond (In the UK).

PLEASE can we have English (UK) by default. I notice when you add it to the list of languages in settings the USA version cannot be deleted.

Like many, I'm getting Authentication error using gmail. I had no problems on my old computer under Windows10. When moving to a new computer with Windows11, my main gmail did install. However, 2 other emails, I also need, will not install without this error. I'm using McAfee LiveSafe antivirus on the new computer. If I can't solve this, I'll no longer be able to use Thunderbird (which I like!).

Today my 102.0.1 has disappeared. TB has worked for me for decades including now on 102.0.1 which is the latest version. I've downloaded 102.0.1 again but still doesn't show up.

My version of Thunderbird is 102.0.3(64-bit). It will not update. i keep getting a message that it is not able to download the update and need to download a new version for the update. Can any one help me. Thanks

I was told to reboot my system to complete a Thunderbird update.

After the system came up, my main email account wouldn't display. It was there when I went into account setting but wouldn't show. After closing an opening Tbird several times it showed up. now none pf my filters are running. In some cases it says the folder doesn't exist when it does! Most of the rules are missing actions!

What's up guys???

Until yesterday I could click on 'Inbox' and it would shows all emails from all 3 accounts I have set up. There was an update yesterday (102 1.2) Now although I can go to each email account individually, when I click on 'Inbox' it only shows emails for one account.

It also seems that search is also not functioning across accounts.

What must I do in order to enable address book address information. Now when I try to change address information it is as though my keyboard as been disconnected. thanks

Hi Thunderbird updated itself to 102.1(and now 102.1.1) and it lost 2 of my mailboxes or at least the inboxes. I have tried repair folder in the preferences for each inbox. The inboxes are greyed out. The location in the preferences, imap://driver_al%40*********@pcluster02.stablehost.com/INBOX, takes me now where or at least I can not find it. It is does not even seem like it is checking for new mail in those boxes.

I have a total of 11 mailboxes of mixed imap and pop. Only 2 seem to be effected both imap. I have looked in the profiles folder but do not seem to find them there as the folder names do not match the mailbox names..

I have Thunderbird 102.2.1 (64bit) on a pc win 10. Today it stopped working properly. when opened, the window is white and blank. yet, when i hover the mouse over it, i am able to select from the tab buttons at the top. the only way that i can see thunderbird normally is if i put it into troubleshooting mode. my business depends on thunderbird to work, so please help.

I just installed TB 102. I have multiple cardDAV accounts set up in Thunderbird, they synchronised fine as far as I can tell. But when I type anything in the field "search all address books", nothing happens. Even if I press enter. The entire list of contacts remains displayed, I can scroll it, as if I never typed anything in the search field...

Any view what I could be doing wrong? I have only two add-ons: Dark Reader and Addon Compatibility Check.

I am trying to send an e-mail to an address I have sent before and get this message: Sending of the message failed. An error occurred while sending mail. The mail server responded: 28AIcTF2017255 This message has been blocked for containing SPAM-like characteristics.. Please check the message and try again.

How often does 102.0 update? It appears to update every ten seconds by my estimation because every time I launch it updates before loading. I can close it and open it seconds later and it pauses to update again?

Is this some bug that it keeps updating no matter how many times a day I may open or close the program?

Should it just check and remain silent if there is no update?

I am going to turn off updates until I know why it does this. Never had this issue with prior versions.