Thunderbird Community Forum

Hello, I speak french therefore sorry for my english ! I have since 3 days, the impossibility to send a mail. I always receive an error message like this :

L’envoi du message a échoué. Une erreur est survenue lors de l’envoi de l’e-mail : erreur du serveur SMTP. Le serveur a répondu : bluewin.ch mailout-004.p.bluenet.ch Swisscom AG sc774: Blocklisting in effect.

This have been caused as I wanted to send a message to a list of more of 100 personn and the system of my provider (Swisscom Bluewin) blocked me.

I contacted them explained the situation and the have deleted the blocking list and if I go on the email of the provider Swisscom I am free to send message without problem.

BUT in Mozilla Thunderbird i am still blocked with the above mentioned error message !

I have controlled all my SMTP info and they are correct, I have try to disabled the Bitdefender security but no way it remains blocked.

My question is, is this blocking list only remaining in Mozilla Thunderbird and for how long time or someone can help me to cancel this blocking list in Mozilla Thunderbird ?

Many thanks in advance for your help

Clapas

Hello,

I’m encountering an issue after migrating my domain and professional email service.

My address was originally hosted by Cabanova and configured in Thunderbird. I recently transferred the domain and email hosting to OVH, which caused the old mail server configuration to stop working.

Here’s the current situation:

The account in Thunderbird is still using a POP server (ssl0.ovh.net – port 995), while OVH uses IMAP (port 993).

I cannot change the server type from POP to IMAP within the existing account settings.

When I try to add a new account, Thunderbird completely freezes after I click “Continue” and never gives me access to “Manual Configuration.”

I also cannot delete the existing account because it contains all my previous local emails that I need to keep.

At the moment, I’m able to send emails from this account via OVH, but I don’t receive any incoming messages.

What I’d like to do is simply update the server configuration to OVH’s IMAP settings, without losing my existing local messages or recreating the entire profile.

Could you please let me know if there’s a way to:

Force an existing POP account to switch to IMAP,

Or safely recreate the account as IMAP without losing local data and without Thunderbird freezing during setup?

Thank you in advance for your assistance,

While attempting to upgrade my Ubuntu Thunderbird client, I saw the attached screen. I'm concerned because of the unsophisticated style of the page, and the fact that it asks for my password, which makes me think "phishing". Can some trustworthy person confirm that this is a legitimate screen?

Suddenly, when I go to send e-mails (to me, or anyone else) I get a pop up signal that says I can't send it because it might be questionable, etc. What do I do send my e-mails since none of them are "scam" or "questionable".?

Hi, it's many year that I moving manually messages to folders located on a NAS. Everything has always been fine, but today I've discovered that, despite searching funcion is regularly finding all the messages, if I try to open them they show a blank body (see image attached)

I have two email accounts, one is hotmail.com, the other is on outlook.com

The SMTP for the outlook account works fine, but Thunderbird puts that same smtp details into the Hotmail account smtp. That also puts into the Hotmail username, the outlooks email address.

If I try to send an email using the Hotmail account, I get a message saying 'Hotmail can not send using xx@outlook.com

If I use the settings to make the username xxx@hotmail.com, it puts that into the smtp of the outlook.com address then that will not send giving the same fault. This has only started this last couple of days, nothing changed in the settings.

This only occurs on my Desktop. On my laptop with same settings it works fine.

Thunderbird is showing up to date?

Help Gerry

Hello, When I open the window to write a new email the toolbar is missing. I can't see the buttons for "send" or "attach" or any other options.(you can see it on the picture) How can I restore the toolbar? Thank you for your help. Best regards, Bokor Vanessza

Thunderbird 143.0.1 eclipse.

Quite recently I noticed that, in the list of folders, I see 2 "Junk" folders.

On looking at the properties for 1 Junk folder the location is shown as "imap://*********%40gmail.com@imap.gmail.com/Junk",

but properties for the other shown as Junk locates as "imap://*********%40gmail.com@imap.gmail.com/Spam".

I've tried renaming that folder in Thunderbird to Spam but the change doesn't take effect.

What went wrong, and more importantly how can I rename it to see it as "Spam"?

tnx.

I have a new laptop "YOGA" with W11. Now I want to add an extra e-mail address. I am in Sweden and now I want to add my Spanish e-mail. It is a " @telefonica.net" address. I only want it to receive mail, to send mail I use my ordinary swedish mail. When I put in the "@telefonica.net" Thunderbird will not respond it says "use only letters and figures etc"

How can I fix this?

After the latest Thunderbird update, the line at the bottom of the displayed that Thunderbird was retrieving/downloading messages from my mail server is no longer displayed. I have looked for a way to display the activity but have have not found anything.

I would appreciate some assistance. Thank you.

Using Windows 11, Thunderbird 143.0.1 (64 bit)

I have a filter that moves emails based on the Sender... to a Local Folder (*) The system is set to [Filter After Junk Classification]

Every new email moved (by the Filter) to this Local Folder is marked as Junk. I manually set each email as not-Junk but the issue persists. (*) I have added a Filter action (as well as the Move): Set Junk Status to Not Junk (but this is not successful)

Any suggestions to fix, are welcomed.

I do not have the password to my Thunderbird Mail in current laptop. I think it will be needed when I start up a newly bought laptop where I will include Thunderbird Mail. What can I do?

Every time I start-up Thunderbird, a series of 2 pop-ups from Yahoo open up: [ Sign in using your Yahoo account ]. I close the pop-up and a 2nd one pops-up. I close it and say 10 or 15 mins they pop back up in the same series. It's very frustrating. I can't tell if it's Yahoo or a scam cookie. I notice the URL at the top of page and it's the same one every time and every day. The same URL shows: "https://login.yahoo.com/?src=thunderbird&client_id=dj0yJmk9NUtCTWFMNVpTaVJmJmQ9WVdrOVJ6UjVTa2xJTXpRbWNHbzlNQS0tJnM9Y29uc3VtZXJzZWNyZXQmeD0yYw--&crumb=uE2cxQuNxpE&login_hint= ..." <... it goes on for a few more lines. It's long. I went to Firefox and cleared all 'cache' and 'cookies' and they still pop-up in Thunderbird. Heck, they just popped up again while writing you! How do I stop this intrusion while using Thunderbird? Thanks, RonD

It makes sense that you might want your signature text to change depending on who you are communicating with (employer, business, friend, etc).

In Outlook you can enter several signature texts, identified by a name. I sure would like to have that in Thunderbird!

Another possibility would be to circulate among several signature texts, just to "keep it fresh".

Thanks for your consideration.

Win 7 used to let you drag files from jump lists anywhere you wanted, such as to an email. MS in their wisdom removed that feature from win10/11. The beauty of the old approach was that you didn't need to go find the exact file; finding it in the jump list was sufficient. You can find the file, right click, and select Send To, but that is less convenient than going to the jump list.

The current jump list does have a share feature but the only email client in that lists of shareables is Outlook. I asked ChatGPT about adding TBird to the list and it said it can't be done unless Mozilla implements the Share Target API.

Is that worth submitting as a feature request or is it am impossibility?

Hello I deleted a lot of emails, and I am not sure if all my old emails have been completely deleted. When I go to open Thunderbird, after about a minute it will freeze up. I have 3 email accounts and I can only view one account but when I try to view another email account, it freezes up, and I have to exit. Before I deleted my emails it all worked great no problems. What did I do wrong and what can I do to get Thunderbird back to working like it use to ? Thanks a lot Sam