Thunderbird Community Forum

I have tried to fix 1 of 4 Thunderbird email accounts not receiving or sending emails. Been lagging for a few days although other 3 accounts working fine. Followed a YouTube, checked settings, firewalls, virus settings etc. Then on 'Inbox' selected 'New' then 'Properties' then 'Ok' and all my inbox and deleted emails have disappeared! Please help!

For some time Thunderbird has not been displaying email I finally got an error message:

"This message requires formatting features that your email client does not support. To read today's newsletter, use this link: <>"

Nothing was in the suggested "use this link"

What formatting feature am I missing? How did I lose it? I can I discover it and include it again? Is this a Firefox problem or my Windows 11 problem?

I did remover Firefox and then reinstalled it but that didn't change anything. -- Robert Kastigar 5101 N Central Park Ave Chicago IL 60625 773 588 9634 Kastigar@gmail.com

I have just set up a Thunderbird account and linked it to my Google business account which I am going to cancel and close.

can I still view old emails (for the google account I am going to close) in Thunderbird after my google business account has been cancelled

In most emails, when you have a mail thread/conversation, you get to see everything you received and sent grouped in that thread. However, the messages I send do not appear in these groups and this is quite a nuisance. I moved to Thunderbird recently. Overall, I'm enjoying it very much. But the lack of this feature both on the PC (I'm using Fedora Workstation 45, with Thunderbird 160.0 flatpak) and the Google Play Android version is something that can be very annoying or make the threads hard to follow. I've read somewhere that this happens because these mails can only be grouped within the same folder. I wish that feature was improved, and that those mail conversations/threads would show everything I received and wrote, in chronological order.

I've been using Thunderbird happily for many years, but a couple of days ago, it started making problems. It sometimes shows only my mail address, but no folders, so I cannot get to my mails. Sometimes it shows only the folder for incoming mails, but no "sent". Or "sent" ist empty. Sometimes everything works. (I have a second mailaddress in this thunderbird app, for which all folders are present, no problems there)

When using the retention policy "delete all but the most recent x messages" on an IMAP folder on Thunderbird 160, I am seeing messages get deleted from Thunderbird but they are still present in webmail.

When using the retention policy "delete messages more than x days old", the messages get deleted from both Thunderbird and webmail as I would expect.

I have restarted Thunderbird and run a repair on the folder, but nothing changed.

Dear all, I am currently running Microsoft Outlook 2021 for Mac on my MacBook Pro. I like to switch to Thunderbird. I am sure I know how to set up the various e-mail accounts in Thunderbird.

For me, it is important to have the current data (emails, folder with e-mails, contact data, calendar entry) transferred to Thunderbird so that i do not have to switch between Outlook and Thunderbird.

Question: How can i migrate all my e-mails, folders, calendar entries and contacts from Microsoft Outlook 2021 for Mac to Thunderbird?

Thank you for your help!

Best regards Reinhard Benditte

"C:\Users\kasti\Pictures\'Tis the season to give a little Galaxy - 'Samsung' (samsung... - 2026-11-09 1019.eml"

Displays graphics when viewed on Gmail but not when viewed using Thunderbird.

"C:\Users\kasti\Pictures\'Tis the season to give a little Galaxy - 'Samsung' (samsung... - 2026-11-09 1019.eml"

Displays graphics when viewed on Gmail but not when viewed using Thunderbird.

I have been using Thunderbird for years. My current version is 158.0 (32-bit). In recent months Thunderbird has become increasingly weird and annoying. These problems have occurred individually, not all at once, and each persists--that is, they are all and always present.

1. T'bird's counts of messages in folders is always much higher than the actual counts. 2. I tag messages with color, but T'bird deletes the color tags within a day. 3. Clicking a message doesn't change the message from Unread to Read--that is, the title stays bold. I can change the read/unread indication by clicking the button, but the change doesn't happen automatically. 4. If I drag a message to my wife's T'bird inbox, the act removes the message from my T'bird inbox, but it doesn't always remove it from the inbox at the Server. 5. Deleting a message from my T'bird inbox often also deletes the message just above it. This is the oldest problem, and when it first occurred I found that if I closed and immediately reopened T'bird the message would reappear in my T'bird inbox. Now it does not, although the message might still be in my inbox at the Server. 6. While I am reading a message, the list of messages often pops up to the top (oldest) message. The message I was reading doesn't disappear or otherwise change, but I have to scroll back down to it and click it again in order to delete it or move it to another folder.

These problems are more than annoying. Can anybody help?

Hello ! Thunderbird is runing on Mint Linux. There is a Email account on Austria A1 (Telekom) This account has primary a number such as aon.999999999@aon.at and you can make an alias on it just as "your_name@aon.at". Tihs account has been reading with thunderbird for 2 Years. now A1 has posted, they have to change the number. So they did but the alias has stayed the same. Before this I have made 3 local Archives with thunderbird named 2024, 2025 und 2026 in which I transfered the elder Emails I wanted to keep. After the Change from A1 the local Archives still can be seen by their names but when you klick on them you dont see any Email. What can I do to get them back ? I had a look at the dataset where the data are stored, and in Editor I still find the Emails, but not in thunderbird. thank you for your advice - and sorry for my poor english. grretings from Austria

Why do different emails come in at different magnifications? I get emails from a real estate agent that I have to do a control & + to zoom in on the email so I can read it normally. Why is there not a setting to have all emails at one "zoom" setting? It would be really helpful!! Especially for us older users. Also, when I add a folder to my email, why can't I add it to the list of folders already there by default? Right now I have to add the folder to the inbox and then drag it down to the other folders. When I do this they don't go alphabetically, they go to the bottom of the list. They should drop into alphabetical order. Thanks for your help.

In an answer to a previous question, I learned that Spectrum email has issues. I have since learned that Spectrum is slowly phasing their email out. So I'm guessing that change is necessary for me. If I create a free Outlook account on my W11 desktop, is using Thunderbird still an option? This whole email thing is confusing for me. Thanks for any help.

I haven't been able to discover the revision version of my Thunderbird but I think it has probably been over written with a current version today. My current email is a Yahoo .co.uk What I really need to do is to setup a new additional email with a different @ xxxxx.com.

I would be grateful for some help. Thank you Malcolm Sanderson.

The list of messages does not display graphics. Links are displayed instead, but don't always lead to the expected locations. This started unexpectedly and I don't know the reason.

For years I had an pop account in my Thunderbird, next to my Imap account. Both live happily next to each other. Today I moved all the mails from my pop account (which was no long active, nor was it connected to a server) to my local folders. I found out that all of my folder were suddenly twice the size. Compressing didn't do a thing. Why is this?