Thunderbird Community Forum

lors de l'envoi d'un email, j'ai ce message d'erreur : Une erreur est survenue lors de l’envoi de l’e-mail. Le serveur de courrier a répondu : Client host rejected by spamhaus for spamming issues; please refer to Listed by XBL, see https://check.spamhaus.org/query/ip/xx xx xx xx for further information.

sur Thunderbird de mon PC en Win11 je ne retrouve plus les mails que j'envoie alors que j'ai la preuve qu'ils sont bien reçus : à quoi est ce du ? ... sachant que j'ai un indicateur en rouge qui apparait en bas à droite de ma fenêtre générale avec" 98 % utilisé" ??? a quoi cela peut il être du ? merci d'avance pour votre retour Emmanuel

9/21/26

Dear T-bird Community Helpers,

This is my 1st use of any Mozilla mutual help community message board. I'm learning the ropes.

Re. the OS build: I never use beta anything. I established the folder, that went zero on me, recently (less than 2 weeks ago). I hadn't yet backed it up onto the cloud or a flash drive or other medium. Was just about to, but thought I'd rename the folder 1st, 9/13.

My mistake there, but not in the renaming. Never renamed a T-bird folder before. I had set up Thunderbird the week before 9/13, as a backup to e-mails in my Earthlink WebMail Premium account. 1st as a POP account, then later that week, after checking with a reputable AI interface, I made an IMAP.

Today I couldn't find any prior messages in this community board. That I, with my best focus, found relevant to my situation.

I try to learn what is involved, first, in decisions between products, accounts, and methods to follow. But I don't have all day. I don't short-shrift research, but I don't have all day. I relied on an AI bot when I had second thoughts on appropriateness of POP account, and it recommended IMAP account be added. Not substituted for the POP one, though---I asked it about that. too.

I work hard to learn computer terms but am not deeply skilled with computer stuff. I cannot generally read between the lines, to infer what sub-step to take to make the next listed step likelier to work. Nor can I understand very unnecessarily complex instructions, so please be feasibly simple in how you instruct me to find a way to restore my local folder. I don't know the exact name it had before. I use spelling tricks to keep folder names short, so there are MANY possibilities for the old name of that folder.

Your advice, please. I will be grateful for friendly, complete, instructions. Worded simply as is feasible. And questions 1st, sure, if you need to know more 1st.

         Thank You,
             AK

Editorial note - please do not put spaces at the front of each line.

So, I recently updated Thunderbird and I appear to have lost the Spell check as you type feature. By 'doesn't work' I mean; The incorrectly spelled word is underlined, but a right click shows; No Spelling Suggestion (which kind of suggested the feature can't find or isn't reading the dictionary)

I have done multiple things to try to get it to work.

I have checked I have the English Language Pack installed in Add-ons> Language I have check I have an English dictionary installed in Add-ons > Dictionary. (I have uninstalled the above and re-installed them too, including, shutting down Thunderbird in between)

I have unchecked the "Enable spell check as you type" in Settings > Composition, restarted Thunderbird and then re-checked it.

Quite by chance, while I was typing this, I added an Add-on called "Easy Table Editor by Cardella" And whilst testing it, I noticed the Spell Check as you Type worked in the Pop-up window and continued to work inside the inserted table in the compose window. NOTE: Text outside the table, still does NOT work.

Whilst playing around, I also used a Text Highlighter tool (TextMarker) and amazingly, text that has been highlighted, also seems to work with Spell Check as you Type.

I then deleted everything (Ctrl A) Delete. And any text I type, now responds correctly to the Spell Check as you Type.

So, something in the thml code seems to be disrupting the code?

I deleted this line and it works

First, i use Thunderbird 153.3.1 esr (64 bits). My browser is Firefox 156.0 (64 bits) and my Internet service provider is Free (from France).

My issue is I receive an error message (505-5.7.30) when I send a mail to one ou some people. At every time, the error comes from adree finished in ...@gmail.com

This is the end of the error message i receive :

'The mail system

<(hidden identify).54@gmail.com>: host gmail-smtp-in.l.google.com[173.194.76.27] said:

   550-5.7.30 Your email has been blocked because DKIM authentication didn't
   pass 550-5.7.30 for this message. Gmail requires all email bulk senders to
   550-5.7.30 authenticate their email with DKIM. 550-5.7.30  550-5.7.30
   Authentication results: 550-5.7.30  DKIM = did not pass 550-5.7.30  To set
   up DKIM for your sending domains, visit 550-5.7.30
   https://support.google.com/a?p=turn-on-dkim  550-5.7.30 To learn more about
   Gmail requirements for bulk senders, visit 550 5.7.30
   https://support.google.com/a?p=sender-guidelines.
   ffacd0b85a97d-487245a57a8si2910364f8f.321 - gsmtp (in reply to end of DATA
   command)

" I have need a translator to read and understand all of that... But when I go on Google support to have the way to solve my problem, the explanations are too complicated for me !

Lionel Grosselin

Having issues sending e-mails due to message: "e-mail not sent. Cannot connect to SMTP server 47.43.26.4 (47.43.26.4:587) connect error 10060" Requires 2-6 attempts to send. Also, problems with sending attached files, claiming to be too large.

I've had AOL for an Email provider for several years now. I rarely went to the website to check my Email cause Thunderbird was linked to it. But today, AOL seems to be turning off my Thunderbird (I can't send or receive Email at the moment). It's like malware with the continuous popups making me log in to AOL to use Thunderbird but then ending up on some Yahoo Oops screen. I've been using Thunderbird since before I transitioned to AOL after moving.

It's been working fine up until today. When I do anything on Thunderbird, the annoying popup screens appear wanting me to log in. Any ideas? Have I been hacked?

A vertical blue line/bar has appeared between the folder icon and the folder name. I can change the icon colour in properties for a folder but the blue bar stays blue. It is blue regardless of the state of messages in the folder (whether read or unread). Is it possibly related to the bug where Thunderbird tries to update every time I open T? But help says T is up to date. The blue line does not appear on my wife's Thunderbird running the same software version under a different profile. It is very annoying not knowing why it is there and what it means. Thanks

Thunderbird version: 153.3.1 ESR Operating system: Windows

I have two free Outlook.com accounts configured in Thunderbird.

One Outlook.com account works normally. The other Outlook.com account consistently fails.

Error message:

"User is authenticated but not connected."

What I have verified:

- OAuth2 is configured for IMAP and SMTP. - IMAP is enabled in Outlook Web settings. - Web Outlook works normally. - Outlook for Windows works normally. - Spark Mail on iPhone works normally. - Another Outlook.com account works in the same Thunderbird installation. - Betterbird shows exactly the same behavior. - The account has been recreated multiple times. - Saved passwords and OAuth tokens have been deleted. - A new Thunderbird profile was tested. - The browser used for OAuth authentication was changed and tested. - OAuth authentication completes successfully in the browser. - IPv6 was disabled (network.dns.disableIPv6=true), but the issue remained. - The failing account uses the primary Outlook.com alias, and the username matches the primary alias. - hostname, authMethod, and type settings are identical to the working Outlook.com account.

Relevant log output:

D/IMAP XOAUTH2 auth

15 NO User is authenticated but not connected.

Additional observation:

OAuth authentication succeeds, and Thunderbird proceeds to XOAUTH2 authentication. The Microsoft server then replies:

"NO User is authenticated but not connected."

Has anyone seen this behavior with a specific Outlook.com account while another Outlook.com account works correctly in the same Thunderbird installation?

After switching DNS registrar to Cloudflare, Thunderbird couldn't connect to POP3 server. I set mail A record to un-proxied (DNS only), MX record points to mail.mydomain.com.

I pinged mail.mydomain.com and saw the real IP address, not a proxy IP from Cloudflare.

I used the real IP address for the POP3 server, still can't connect.

I used my web hosting company's server name, which has exactly the same IP address as mail.mydomain.com, everything becomes fine.

Anyone has had the same issue? Thanks.

I use Thunderbird all the time as my email on a desktop PC.

For several emails, especially some from yesterday the Correspondent and the subject have  ?crossed?

For example: an email looked from the Correspondent list as if sent from my energy provider but the message was from a Garden Centre. It's not a one-off; another message looked like from a magazine but was a receipt for a purchase. They were not consecutive so it's not as if the list has 'slipped' by one or two. I think it's happened before but not as worrysome.

Is there a reason or solution please?

I'm now scared to delete unwanted emails without time consuming checking each one in detail.

Thank you for any advice/support/suggestions

I have a POP3 account which will not download new emails. The indication is there are no new emails. I can access the email account through gmail and there are many new emails. I have checked password. I have gone through the re-indexing procedure and all other possible solutions I could find. I did find some information about Java and incidentally, there was a Java update on the day my emails began to fail, 8-16-2026. I found this error message, but I don't know how or if I can fix this: module is not a constructor ExtensionCommon.sys.mjs:1679:15

   asyncGetAPI resource://gre/modules/ExtensionCommon.sys.mjs:1679
   AsyncFunctionNext self-hosted:780

Thank you for any help you might provide. Please email to [redacted email from community support forum]

One day after windows update, my thunderbird can't not download email from yahoo, microsoft, google..etc I tested the connection be fine but I can't recive any email

Hi, Last week, Thunderbird stopped receiving & sending emails with CenturyLink. I can access CenturyLink emails via their website and on my android.

Using Google, it said the configuration should be changed to CenturyLink's settings. It looks like Centurylink changed the settings for legacy email "centurytel.net". I went to CenturyLink website and copied their settings the best I could.

https://www.centurylink.com/home/help/internet/email/how-to-set-up-your-email-server-settings-to-go-through-pop-and-smtp.html

1. CenturyLink website shows changes to the following settings.

       a.	Incoming Server:  POP:  pop.centurylink.net    Port: 995, Security:  SSL
       b.	Outgoing Server:  SMTP:  smtp.centurylink.net    Port:   587     TLS if available
       c.	Username:  Full email address which for me ends with @centurytel.net

2. Thunderbird settings are: (screen print attached)

        Incoming:  POP: pop.centurytel.net  Port:  995, & Security:  SSL/TLS.  
        Outgoing SMTP:   Server:  smtpauth.centurytel.net    Port:  587,  & Security:  STARTTLS

I only changed the POP and SMTP server names. The security settings could not match up exactly since the drop down options did not have SSL and TLS individually. I left the original settings Thunderbird had of SSL/TLS for incoming and STARTTLS for outgoing. A screen print of Thunderbird's original settings is attached.

After following the settings configuration setup in Thunderbird, entering my correct password, I received this Authentication error: "Unable to log in at server. Probably wrong configuration, username or password." That's as far as I can go. Thank you for any help you can provide.

Hi I have just set up AOL accounts for 3 email addresses on Thunderbird. I have set them up as pop accounts and each account can receive emails and send emails ok but the really strange thing is they won't send from one AOL email address to another AOL email address which is something we quite often do as as family. All have pop.aol.com and port 995 along with smtp.aol.com and port 465. Hopefully someone will know what is going on.