Thunderbird Community Forum

Hi, very nice of you to listen to my problem. It already startet some days ago when I realised that it took very much time to receive mails, in some the content still kept hidden. To work with the about 60 mails listed in the Income-folder, and select some to read the text I was surprised to realize, that in the next moment the folder was empty, none of the mails could be seen on my Windows laptop. I had to switch to the mail-server with Vodafone to see me mails. This situation occured with all folders on 2 Laptops with Windows 10 and windows 11. What could I do ?

Trying to sync my outlook and gmail calendars in Thunderbird 140.10.1 and consistently getting an error I haven't seen before: "status.Settings.138". Event log reads: Request: <Settings xmlns='Settings'> <DeviceInformation> <Set> <Model>Computer</Model> <FriendlyName>TbSync%20on%20Device%20fc68426d642076cda9a60b0dd8f3</FriendlyName> <OS>WINNT</OS> <UserAgent>Thunderbird%20ActiveSync</UserAgent> </Set> </DeviceInformation> </Settings>

Response: <Settings xmlns='Settings'> <Status>138</Status> </Settings>

I have tried using s/mime encrytpion for the first time. I have created 3 different accounts using the same CA on 3 different devices. All three can communicate with each other using the s/mine encryption. I used multiple methods - sending a signed email first and then encrypted+signed, creating a .pem file with public key - importing it in Manage certificates/people and sending an encrypted+signed email. Sending an encrypted email from-to the same address also works. What I can't seem to be able to do is use any other public keys. I have a list of companies and their keys, but whether I use a file downloaded from their site or copy the key to txt and then make a .pem file out of it, as I did with my addresses, I can't send an email that is both encrypted and signed. I get "end-to-end encryption requires resolving certificate issues for ..." and the recipient status "not found". They specifically don't want to send a signature first and then encrypted+signed, and I am stuck trying to figure out what I am doing wrong. Any help is greatly appreciated.

I cannot sent emails. My account is a gmail one, I am using these settings i na POP3 modality:

Server Name: smtp.gmail.com Port: 587 User Name: matos@sgmr.net Authentication method: Normal password Connection Security: STARTTLS

I have used the verification tool in settings, and it establishes the connection.

However, when I try to send, I get one of these responses: "Enter your password for matos@sgmr.net on smtp.gmail.com." I enter the password and it either asks for the password again or I will get: "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.gmail.com timed out. Try again."

I've tried the

I'm using Thunderbird with an Office 365 business account via EWS.

I'm trying to reduce the amount of storage used on my local machine by setting the "Synchronization & Storage" setting to 3 months instead of downloading everything, but every time I change the setting it doesn't stick.

I'm on Thunderbird 150.0.1 (Windows).

I double checked all data (IMAP and SMTP ports, passwords, mail adress, ... And I tried it on 2 brandnew computers (one PC; one laptop), running on Windows 11 I've no idea, what else I could do

Recently, when reviewing my emails the correspondent is NOT correctly listed. It's another entry in my contacts with no connection to the email, which IS in my contacts. It's getting worse and worse, happening more frequently. The header info is correct within the email, but it doesn't display correctly in the correspondent field. Checked my email provider, and they are listed correctly there.

How do I get the correct correspondent to be listed for the corresponding email within thunderbird?

I use Thunderbird on my older Macbook Air, which I am replacing with q new Mac laptop. I have a huge record of emails in many folders on the old computer and want the same thing on the new computer. I have done this many times in the past between a desktop and a laptop Mac with no issues. But something seems to have changed.

I installed the program, I tried to transfer the profile from the old computer to the new computer, and deleted the older profile. I tried to open Thunderbird and it tells me the profile is missing or inaccessible. I deleted the .ini file but that just makes me do a set up again. I used to do this all the time between my other Macs and it was super simple. Now it's a nightmare and doesn't work at all.

So how do we transfer all saved email, folders and server into etc from on computer to a different computer?

Sean

Hi, I use thunderbird as both POP and IMAP through gmail. I keep all my emails on my POP thunderbird desktop client. I use IMAP on my thunderbird laptop client, iPhone, iPad via Apple mail when remote, then download the emails to my desktop.

What I want to do is read emails and set them to archive on my IMA laptop, iPhone, iPad. I know Gmail tags the archived emails. How do I stop thunderbird from downloading the archived emails to my POP thunderbird desktop client?

Thanks! Art

In one email account the arriving messages arrive shown as "read". before they showed "unread" and were bold. I've tried but can't figure out how to reverse that. a different email account on the same reader shows new messages

Hi. I have four gmail accounts and use a desktop pc runnings windows 11. I have been using thunderbird as my desktop email client for many years, but recently, something has changed. My incoming emails are not formatted correctly and the links in them do not work. I'm not sure I am saying that correctly, so I will attach a screenshot. I would love some advice on how to fix this! Thanks, Cheryl

My windows 10 machine died on me recently, but I was able to recover all my Thunderbird Email files from the old hard drive. However, the Thunderbird settings I was using under Windows 10 did not transfer over to the new machine and there is one particular issue which is driving me crazy and I don't know how to fix:

Basically, on my previous machine I frequently filtered my emails using the threaded option based on the Subject field. However, under Windows 10 the filter I was using would ignore the "Re:" in the subject line of such threads and so every message in the thread was displayed as if the various instances of "Re:" simply weren't there. However, on my new machine Thunderbird threads messages as if each instance of "Re:" represents a new thread! How do I fix this?

06 May 2026 USA Just to inform users:

All mailboxes and all mail in profile are catastrophically and irretrievably deleted when I: 1. Change the location of the profile folder. 2. Make appropriate change in profiles.ini reflecting the location change. 3. Launch Thunderbird in Offline Mode (launching in OFFLINE mode is the fatal event). 4. Mailboxes will appear during this one launched session

    but
5. If Thunderbird is closed while still OFFLINE, then a re-launch of Thunderbird in any state will reveal
     that all mailboxes and all mail have been deleted.

All mailboxes, and of course, all mail in the profile are catastrophically and irretrievably deleted. I was lucky that I made a backup before changing profile location.

The deletion of mail and mailboxes occur at the close of Thunderbird's OFFLINE state. An examination of the profile folder indicates the destruction has occurred upon closing of Thunderbird in OFFLINE state.

It is not the re-launch of Thunderbird that causes the catastrophic deletion. The deletion occurred when Thunderbird was closed in its OFFLINE state.

To successfully change the profile location I must: 1. Make the change to profile location. 2. Make the appropriate change to profiles.ini 3. BE SURE to make the FIRST LAUNCH of Thunderbird in ONLINE mode--ONLINE only. 4. Once 1,2,3 are done, then Thunderbird does not corrupt the profile folder.

Conditions that MIGHT make my configuration uniquely affected: 1. I use Proton Mail Bridge in conjunction with Thunderbird. 2. My Profile folder is on a network share that is letter-mapped in Windows. 3. I have about 10 email addresses in Thunderbird that are Outlook IMAP, Gmail IMAP, and of course, Proton Mail.

I've been using Thunderbird a couple of years in this configuration with no problems. I just decided to rename my profile. So, this is my first discovery of the problem.

I continually get this message from Thunderbird: https://p123-contacts.icloud.com is requesting your username and password. I have entered apple pw but it never stops. Anyone else seen this?

I used to just have my Canon TS6350 do my printing. Great. Now Thunderbird seems to have taken over my choice of how I print for a long while and it's driving me nuts. It is a dreadful system. I have searched settings to no avail. Can someone advise a Geri Brit of 82 how to deal with the problem Thank you very much Kind regards Alan Jones

Good morning. I’m trying to set up a new email account for my Xbox gaming system in Outlook. It’s currently in Thunderbird, but it’s for Outlook, and it keeps saying the password and email address can’t be verified. I don’t know of any login, and I’m sure the password and email address are correct. Any ideas?

Server Posteingang IMAP (empfohlen) imap.vodafonemail.de Ports für Posteingang IMAP SSL: 993 / TLS: 143

Server Postausgang SMTP smtp.vodafonemail.de Ports für Postausgang SSL: 465 / TLS: 25 oder 587

I have just set up Thunderbird on a new Windows 11 PC. So far as I can tell I have filled in the server details correctly. I can receive incoming mail. However, it fails to send emails out - I have tried a couple which I know are correct. Error message is: Sending of the message failed. An error occurred while sending mail. The mail server responded: <<snip>>: Relay access denied.

Please check the message recipient "<snip>" and try again.

(I've removed the actual mail address from the error message.) I've read the answers to previous versions of this query and made the correction as suggested. This hasn't helped. Any suggestions please? Many thanks, Roger Moore