Thunderbird Community Forum

I have recently noticed "random" mail is being added when composing reply. It only happens with Reply (All). New mail or Forwarding is not affected.

To every reply there is added text with "Jane Doe <jane.doe@example.com> = author" (with name and mail of person I know, have in contacts, but have no affiliation to replied mail). It is the same person every time. It happens on all accounts / identities. Happens on both PCs (Fedora and Arch). I do not have account for "Jane Doe" in TB.

I have looked thru all TB settings / account settings, but did not find anything. Changing said contact made no difference, the added text is still the same, so it is not being pulled from the contact. I have no extension enabled. Previous used ReplyWithHeader, when re-enabled this issue is not present.

Where is this "text" coming from and how do I get rid of it?

Thanks for help.

Hello everyone,

When I create a new event in the calendar, I click on the start day and use the drop-down mini-calendar to pick the right day. Unfortunately, this drop-down shows a misleading view – the first column shows up as Sunday. How can I fix it? Seeing Monday in the first column would be much more natural. Sunday as a first columns is very confusing and leads to miss-setting the date of an event.

Thank you Paweł

Would someone please make a tool that will diagnose and fix the continuing problem of local folders showing as empty when the profile mail folder shows many message files inside? I've wasted far too many hours following all the suggestions from Mozilla help and Google searches all to no avail. Also, the Add-On ImportExportTools NG does not help or even seem to be working at all. TB 128.9.1 esr

Desperately in need of assistance. Been using Outlook for decades, but continual issues have forced me to move to another option. Been using Bluemail on my phone, but saw that Thunderbird supposedly functions more like Outlook without being the pain that is Outlook.

So, I was managing 6 different email accounts in Outlook and all were POP3, because I get a lot of client emails and need to store them for legal reasons. I end up with way too much data to keep out on IMAP servers.

Anyway, I installed Thunderbird and setup my personal business email on it as POP3 and that seems to be fine, but I need to also import my PST/OST backup of that account into Thunderbird so that I have access to all of the saved emails/calendar. I see places that tell me it can be done directly in Thunderbird and others that tell me I need a 3rd party app. Does Thunderbird not include an import or conversion option that will let me do it?

If I can get this to work, I will then need to do it for the other 5 accounts, and unfortunately soon, as some of my accounts are nearing their max storage size in IMAP while I try to solve this.

Thanks very much to anyone who can quickly and accurately assist me.

SMC

I am running Windows 10 Home edition. My email account is for a domain I own on Dreamhost. When I click on a subfolder I get the message "Server imap.dreamhost.com has disconnected. The server may have gone down or there may be a network problem." I have my firewall set to allow thunderbird.exe traffic to pass. Any suggestions. I don't have this issue running K-9 on my Andriod phone. (I am reluctant to switch to Thunderbird on my Android phone until I solve this on my PC.

Any suggestions?

A jpg atttachment no longer opens with right click. I have looked at settings, in files and attachments and have tried, open with photoshop elements, open with firefox, always ask, and save file. None make any difference. I can right click on the attachment and the menu says open, save etc. click on open and nothing happens.

I recently got a new computer, and set up Thunderbird as my email program. Everything is working, except I get two copies of every email I receive. What setting do I need to change to fix this? Thanks.

I have been using Thunderbird for several years now and am currently using Thunderbird Desktop Version 128.9.2esr Released April 15, 2025, on a MacBook Air Retina 13", using OSMac Sonoma 14.7.5. Office attachments cannot be open directly from an email, but have to be detached first. I have had this problem for some time and I have looked at other posts about this and followed instructions, but the problem persists. Thought I would try again to sort it out. Any help to resolve? Thanks

Since I updated to 128.4.1esr filters no longer work good: some emails are left in the main folder and not transferred in the subfolder I'd like and I ordered via filter; other emails are duplicated in the main folder and in the destination folder ;moreover, if I try to modify a filter, the window is so big that the OK button slips under Windows 11 system tray and it's impossible to click; thw window is impossible to resize, nor I can drag it, so the OK button remains invisible under Windows tray bar. Thanks for your help.

My installation: Thunderbird Ver. 128.4.1esr ID build 20241101163316

Aloha, I have been using Thunderbird since decades. Since a few weeks (or even months) by now, it is hanging all the time. Meanwhile it is totally impossible to use it properly. Whenever I klick on something it hangs itself up and I have to wait at least a minute until I can click something else and then it hangs again.

I already tried reinstalling, but that didnt change anything. Of course I also rebooted the computer.

Why is that so and what can be done?

Mahalo, Stefanie

After I reinstalled Windows and reinstalled Thunderbird, task reminders no longer work. I create tasks using the New Task button on the Tasks tab with a due date and time in the New Tasks dialog. This used to result in a Reminders window popping up at the scheduled date and time. Now, however, nothing happens. As far as I can tell, all the settings on the new install of Thunderbird are the same as I had before. The screenshot shows what I used to get, and what I would like to get again.

Is some setting required to get a Reminders window?

Hi, I often recieve mails with an invitation for a date. Opening the mail I see the date and 3 buttons accept, preliminary and reject (I am not shure about the English buttons) When clicking accept no mail to the invitor is send. What setting is wrong? I am using 128.9.1esr (64-Bit) Many thanks Wolfgang

My desktop icon disappeared and so did my ability to acquire my e-mails. Tried re-installation but this failed with message, "Unable to log in at server. Probably wrong configuration, username or password.

created event then about a week later edited event for much later in day, neither was done using thunderbird. Now reminder for event constantly shows for event in original form. Cannot do anything else, have dismissed event but reminder returns after past event. Deleting event does not stop reminder in TB. Event still shows original in calendar, edited version missing. No way to resync to remove, events added after do not show up.

Recently saving draft emails has become an issue. No longer functional in automatic or manual mode. See attached image for details.

Similarly, automating and rules guided saving copies of 'sent' emails have failed.

No changes have been made to these Thunderbird components.

Attempted to repair the 'drafts' folder did not help.

Any assistance welcomed.

If I send an email to my wife's or my own email address, I don't receive it. If I send an email to the same email addresses from my Gmail address, it arrives at both addresses without any text enclosed.

Hi Thunderbird

I can't send emails from Thunderbird. Get this message: "Sending the message failed. Could not communicate securely with the other party, no common encryption algorithms. Configuration issues regarding need to be fixed."

I have a very hard time figuring it out and hope for help. Preferably in Danish.

Best regards Bente Nybjørn