Thunderbird Community Forum

my head is spinning with trying to understand. i changed the authentication to oauth2 but can't seem to find out whats wrong and my dislexia is making it so hard to figure out.

Have used Thunderbird with Comcast/Xfinity for over 10 years. I can receive all of my email on Thunderbird. About 6 months ago I started to not be able to send emails from Thunderbird sporadically, but it has escalated to the point of not being able to send emails of my comcast.net accounts at all. From my gmail accounts I can send messages just fine through Thunderbird. Three weeks ago I spent 2 hours on the phone with Xfinity. Reset all the passwords, checked all the settings, etc etc. For the rest of that day I could send all emails through Thunderbird. Ever since that day, same problem. I spent another 2 hours on the phone yesterday with Xfinity and they are sending my issue to a 3rd or 4th tier support person. They say there is no guarantee they will find a solution and that I won't hear back until Monday or Tuesday. Also this is the same problem on 2 different computers. One computer has the newest Thunderbird update to version 128.1.0esr and the other has the last version of Thunderbird as 115.14.0.

Here is the exact error message I get when I try to send an email:

Sending of message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-s2p-647654.sys.comcast.net resomta-s2p-647654.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available.

The numbers after s2p- change for each attempt to send an email.

Believe me I have tried all sorts of different settings and I have read practically all of the solutions I could find on Mozilla's support forums and articles.

Really need help on this one. Jennifer

Thunderbird was configured to send & receive via Cox /yahoo mail. Worked until recently but can no longer send or receive.

Please advise. Best Regards, Leigh Wax

TB 115.14.0, Win 10 22H2, desktop PC, POP3 from gmail...

I select one of my gmail accounts in TB and click Get Messages. It downloads one or a few emails from gmail and then suddenly the Windows hourglass appears and the banner bar at top of screen which says: "Inbox - (email account)@gmail.com - Mozilla Thunderbird" shows (Not Responding). After ~10-15 sec, downloading resumes normally and all messages accessible.

Happens with all 3 of my gmail accounts and all use same settings: Server type: POP Mail Server Server Name: pop.gmail.com port 995 Connectivity Security: SSL/TLS Authentication: OAUTH2

No TB add-ons installed, Windows Scanning is disabled in TB, running Windows Defender. Lots of free disk space, 16 GB RAM...

Tried TB troubleshooting but nothing found. Have run various Windows checks (eg, DISM and sfc) with no errors and problem continues.

Suggestions?

Thunderbird is taking a photo attachment from one message and attaching it to all new messages that I open, replacing the message text with the photo. Restarting Thunderbird and restarting the computer did not help.

I've tried restarting and reinstalling Thunderbird but no change in this blockage since Tuesday. I am running Windows 11 Pro and Thunderbird 128.1.0esr (64-bit). Downloading chunks of email from Comcast and trying to import them doesn't work. Please advise as I am stuck. I will check your answers on Comcast server as I can not read them directly.

To start, I do receive most of my emails intact. However, there are the occasional email only partially appears. I see enough of it to know who it is from. As an example, I get a bill from xfinity and only what appears to be the graphic part shows up, but, the details of the body of the email do not appear. So I don't know what they want to tell me. All this is in regular Thunderbird. That being said, when I open Thunderbird in troubleshooting mode the full email is then visible. I have tried the reset everything and nothing seems to work. I have taken to only opening Thunderbird in troubleshooting mode as then I am assured of seeing the full emails, text and graphics. Maybe you can help me adjust something to fix this problem. Oh, I am using windows 10 on a pc. Thanks, Dic Bason

I was working with Tools->Message Filters to add another domain name into the account's e-mail address line vi the Edit... button. I did something I am clueless as to what it was, and now ALL an this account's INBOX contents are in JUNK

• running a test send to this account, the incoming mail automatically goes into the JUNK folder.
• JUNK now contains all INBOX contents (going back to 2014) as well as messages manually tagged as junk/spam
• copying-pasting one or more Subject lines from JUNK to INBOX doesn't work
• all mail stays in JUNK and nothing stays in INBOX
• somehow it's as if I've made INBOX be a symbolic link to JUNK.
• this happens on all my machines:

-- Mac running Monterey 12.6.1 with Thunderbird 115.10.1 (64-bit) -- Mac running Monterey 12.7.6 with Thunderbird 115.10.1 (64-bit) -- Mac running Sonoma 14.4 with Thunderbird 128.1.0esr (64 bit)

In this account's Tools->Message Filters, clicking Edit for SpamAssassinYes, and then not doing anything and simply clicking OK, a notifier window comes up stating:

Search Terms Invalid This filter cannot be saved because the search term "Junk Score Origin isn't" is invalid in the current context.

I've never intentionally edited the SpamAssassinYes Filter

HOW CAN I RESTORE INBOX TO FUNCTION CORRECTLY?

All my email accounts worked until 9.30 pm 8/22/24

When I went on the computer on this morning, 8/23/24 I got the following message:

Unable to connect

An error occurred during a connection to localhost.

   The site could be temporarily unavailable or too busy. Try again in a few moments.
   If you are unable to load any pages, check your computer’s network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Thunderbird is permitted to access the web.

I cannot send or receive email from Thunderbird. I turned off and on the computer, I'm set at imap, port 993 and OAuth2. I don't know what else to do. FireFox works fine.

Thanks for any help. (please reply to akapugs@ yahoo.com. That email is working, as it is not connected to Thunderbird)

Leslie

hi there, on left side of Thunderbird = categories are items/words/possebilities = sent and drafts ...twice (one under the same). I installed Thunderbird also on a second computer ...and again the two words are twice present ! absolutly creasy to me and no solution at all to find anywhere. Please advice. Thankyou in advance. kind regards Bernd Wolff ...from Cologne-Germany

I was moving messages to folders from inbox and suddenly Thunderbird was only listing unread messages in all folders. I must have accidentally turned something off. Can you help me? This is rather urgent.

Recently, I changed my password on my email - from Juno, which comes into Mozilla. After I made that change, I am no longer able to send emails from Mozilla. When going into my email on line at juno.com, I am able to send emails, so the problem is with Mozilla. Juno support has suggested a few options, which have not worked.

This is the error message that I receive: Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) . Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'.

I have gone into my settings, and even set up another SMTP outgoing server, without success. I do not know what else to try. Thank you.

I am an older user, 83, with a severe hearing impairment and depend on email for communication. I don't know how Mozilla and Thunderbird are related. Midco is my internet provider For the past few months I have had some of the following problems. Currently Email is very slow to get started nothing on the screen except the upper bar with File, Edit, View, etc. below is another small bar with little boxes which need to be scrolled to the right to get "inbox" for messages if I access a message, I need to scroll all of those little boxes to the right again to get in box. It is quite time consuming and not like it used to be.

In the past new messages have been highlighted, now some are and some not and some embedded in an older message from that sender. i was gone for a week and usually have a number of messages to read, this last time away none of the messages sent while I was away appeared. I have several daily subscriptions which didn't show up highlighted like they used to. I made a $100 donation to Thunderbird at the beginning of the year hoping that would make the service better.

I am trying mozilla support for help. I do need email. Someone suggested I try Midco our internet provider or having a computer expert check this out on my computer

Thank you.

Vicki Douglas