Thunderbird Support Forum

I keep getting this message sporadically: "Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.hughes.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again."

I sent messages yesterday with no problem!

I can't see any issue with the SMTP settings. I've tried troubleshooting mode.

One of my email accounts (the main one) has stopped downloading to my asus Vivobook 15 laptop. My other two accounts are downloading okay and the account that is not downloading to my laptop is downloading to my Samsung mobile phone okay. Please can you help.

I have a SOGo server that holds my address book. The SOGo web interface allows setting of custom properties, something I have used for a long time without problems. I have accessed the address book with Thunderbird both on Windows and Linux (today Windows 11 and Debian 12).

Lately I have problems with synchronization and now I have tried to understand why. I believe that the problem is connected with the transition to vCard Storage in Thunderbird. (See https://developer.thunderbird.net/thunderbird-development/codebase-overview/address-book)

In the Thunderbird error console (on Debian 12 using Thunderbird 115.11.0(64-bit)) I get for a simple VCARD with one custom property (which I created in SOGo):

09:24:18,136 carddav.sync: Error parsing: BEGIN:VCARD UID:56377-6667FA00-1F-59090880.vcf VERSION:3.0 CLASS:PUBLIC PROFILE:VCARD N:With Custom 1;AAAAAAA FN:AAAAAAA CUSTOM1:My custom value END:VCARD CardDAVDirectory.jsm:595:15

09:24:18,136 NS_ERROR_UNEXPECTED: Unable to set Custom1 as a property, use vCardProperties

   setProperty resource:///modules/AddrBookCard.jsm:394
   vCardToAbCard chrome://sogo-connector/content/messenger/startup-overlay.js:551
   fetchAllFromServer resource:///modules/CardDAVDirectory.jsm:590

CardDAVDirectory.jsm:596:19

It does not matter if the SOGo Connector plugin is activated or not.

Best regards Jan

Hello,

I work in a company and we are using Thunderbird for emails. The way me and my coworkers work is that we solving emails we get. BUT. There are two people always here on emails. One of them is taking ODD emails, the second one EVEN. For example I'm the ODD one, so every email that comes in odd time for example 8:31, 8:43, 8:47 etc., are mine and the other person who is EVEN one have emails like 8:30, 8:40, 8:52 etc. So if I make 2 folders one will be called EVEN and the other one ODD is there some way to filter these emails by time?

Thanks for your help and answers

thunderbird 115.12.0 (64-bit) Operating System: KDE neon 6.0 KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.2.0 Qt Version: 6.7.0 Kernel Version: 6.5.0-35-generic (64-bit) Graphics Platform: Wayland

Setting themes to an addon - eco theme ( or any other ) , the theme is applied, after restating thunderbird it ignored even though it indicates its enabled. The theme applied is all white

Hi,

I'm trying to automate / batch set the "When getting messages for this account, always check this folder"-setting for a large number of folders so I'm trying to figure how Thunderbird stores the setting(s) of which folders to always check for new mail.

Checking the `global-messages-db.sqlite` it seems like all folders that have the "always check folder"-setting have a `indexingPriority` value of 30 in the `folderLocations` table, but simply setting it to 30 for other folders does not enable the "always check folder"-setting so I guess that is set elsewhere. Where?

Also what other settings are set for the folder when enabling "When getting messages for this account, always check this folder" ?

Thanks in advance /frax

Dear Support,

we want to intergrade Thunderbird to our Microsoft 365 (Exchange Online), but we have massive problems with the authentication of our users.

I have allready configured an the Enterprise Application for Thunderbird in Entra ID and the Clients, excactly as documented in you article: https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202

We have conditional access policies in out Entra ID, which allow only comliant devices to acess out Exchange Online.

The Thunderbird clients are running on these compliant devices (Windows ans macOS), but it seems that the client is not passing this information through the Oauth authentication (see screenshots 01 to 04 - I uploaded the configuration and all the steps of authentication).

I searched the internet for more then 3 days, but the only thing that I have found about this problem is this: https://bugzilla.mozilla.org/show_bug.cgi?id=1697805

In our Entra ID, we see in the sign-in logs, what excactly is happening with the conditional access (screenshots 05 to 07)

We use the newest client versions of thunderbird.

Can you please help me on this? We realy want to continue to use Thunderbird!

Kind Regards Ioannis Kyriakidis

I have Thunderbird Bets and want emails when opened to be in a separate window as non Beta does. In Settings I've selected "Open messages in - A new message window, but some emails don't wrap text to fit the window but instead have a width & height slider.

Can the Thunderbird Beta software display open emails in a separate smaller window as a default - and more importantly with wrapped text? Geoff

I think that I need to completely uninstall TB Something went wrong on one of my computers, and it couldn't connect to the server. It works on my other computer.

I decided to uninstall TB that had the problem. I did that, but when I reinstalled it, it had all of the same settings and problems. I used RevoUnstaller. because it said When I reinstalled it, all of the stuff and the problem were back.

What is the best way to fix this?

I have two email addresses on Thunderbird. One is working fine while the other Jwhite7@shaw.ca quit loading on April 8th, 2024. Do not know what happened. Need help

This last week one of my inboxes started to group my emails by Today, Last 7 days,Last 14 day and Older. I find no option to change that back to showing all the emails in date order like my other email accounts. The other posts on this topic that I can find are all for older versions that I don't see the commands for in my version.

I am using version 115.11.1 - 64 bit.

I'm at a loss, and I'm being bounced around by a ping pong by Comcast and Optimum. Let me state some facts. 1. The error I'm reporting here, I have NEVER EVER seen before. 2. I have 2 email comcast email addresses, they have worked with Thunderbird for over 15 years- no issues. 3. Optimum is my ISP for the past 5 yrs- no issues like this. I don't have an email address w/them. Seems they don't provide them anymore I was told by their rep!

Earlier last week I noticed I was not receiving emails at all from on my iPhone. I use the iPhone Mail application for email.

I opened Tbird this morning and saw this WEIRD message for both comcast email addresses.

Sending of password for user xxx@comcast.net did not succeed. Mail server mail.comcast.net responded: [AUTH] Temporarily blacklisted IP Address - try again later

Then the following window in Tbird appears both accounts each.

Login to server mail.comcast.net with username xxx@comcast.net failed Retry, Enter New Password, Cancel

No idea what the above blacklist error means.

I called Comcast. We checked/reset the passwords on the accounts in the comcast webmail, I changed them in Thunderbird. I checked both inboxes, and there were over 40 emails I never received in Tbird, nor on my phone, inside Comast's webmail.

Using comcast webmail on my PC, I am able to send emails to myself from both accounts, and reply. My friends are able to send me emails to both accounts. However I can only see the emails on my phone, NOT in Thunderbird.

Here's the more weird part.

My primary comcast (#1) email address on my phone works ONLY when I'm using my cellular data. If I connect to my ISPs router, I cannot send/receive email at all from comcast, and using Apple's mail app, I cannot send email using the gmail account that I have in Mail also. The gmail is independent from comcast.

If I disconnect from Optimum WiFi router, then the following works: 1. Gmail- can send/receive email 2. Comcast email #1 (Primary)- can send and receive emails from/to anyone 3. Comcast email #2- can only receive email, it cannot send at all.

When connected to my WiFi both comcasts read same error in Mail app with "Cannot Get Mail, xxx is currently unavailable"

And no matter what I do- Thunderbird continues to give me the above error and nothing can be sent OR received in Thunderbird.

I have no idea where to go on this one.

Thanks in advance.

Hi,

My issue is that my Thunderbird sent folder is not showing any emails that I send from my iphone or ipad, whether I use the native Mail app or the Microsoft Outlook app. I can't find these sent emails in any folder in Thunderbird.

I'm using an Exchange email account from my university. Using Thunderbird 115.11.1 (64-bit) on Windows 10.

My iphone and ipad are running iOS 17.5.1.

Emails sent from my iphone or ipad do appear in the sent folder on my university's webmail interface which is outlook.office.com.

If this is relevant. in Thunderbird's "Account Settings" under "Copies & Folders" it's set to "When sending messages, automatically ... Place a copy in ... "Sent Folder on ... <myemailaddresshere>" -- if that helps.

I searched but haven't found any information online about this issue.

Thank you,

kate

Hi, I downloaded messages from an university account to a local folder created in Thunderbird. After doing so, I deleted the online messages to make room for more messages, since the university account has very limited space. However, the donwnloaded messages are only visible in preview mode, with a short truncated text. If I click on them it shows a blank message, and attachements are missing too. I already did this before and it worked well. Any idea what was wrong this time? Is there still any way to fix those messages (they are not available online anymore)? Thanks!

The folder "popstate-1.dat" appeared under my email account below Inbox, Drafts, Sent, Archives, Junk and Trash. I have attached an image showing the folder located below Trash and above Local Folders.

Can it be deleted? Is it serving a purpose?

I recently deleted old messages from the various Local Folders folders.

Thank you.

I get the infamous "Unable to connect to your IMAP server. You may have exceeded the maximum number of connections" error in Thunderbird. I just moved to a new Windows 11 laptop but have signed-off the old unit and old phones, leaving just two devices in Google / Security. Obviously, I have reduced the IMAP connections to 1 on the PC. Still, I cannot get emails on this new PC; before reducing the devices, I could get emails on the old PC, the new phone, an iPhone, and an old phone. Turning off the fire wall does not help. I have done many variations of uninstalls / reinstalls on likely combinations of devices. I won't repeat those here but the net outcome seems to be: uninstalled / reinstalled Thunderbird - no effect

shut down new computer and fired up old computer and Thunderbird retrieved new messages immediately

downloaded and installed eM Client - immediately connected and retrieved new messages

downloaded and installed MailBird - immediately connected and retrieved new messages

started Thunderbird and received the too many message.

I just finished a round of installing / reinstalling Thunderbird but with all the AppData/Thunderbird/ folders / profiles deleted. The Wizard failed to identify the server information, which I supplied based on the three sets of working parameters (Tbird, eM, MailBird) but the error this time was a could not connect due to the Username and Password not agreeing.

I don't want to give up Thunderbird but I am out of patience. Please advise if there is some hope for a software fix. I have wasted too much time on this already pursuing a universe of possibilities. Thanks, Don

When writing an email message, periodically the cursor jumps to the subject line.

A prior thread recommended unchecking the hardware acceleration option at Settings / General / Indexing -- though that has not worked for me.

Does anyone have a solution?