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I have been getting the following error message each time I log into my email today: " The STAT command did not succeed. Error getting message number and sizes. Mail server pop.bluedomino.com responded: [SYS/TEMP] Internal error occurred. Refer to server log for more information. [2026-10-14 12:31:46]" I get a message for each of my email accounts. My spouse also gets the message on hers. The server we use has just been transfered from Blue Domino to Network Solutions.

A week ago my sent emails were being rejected and the error message included something about bluehost (I called them and it was fixed within the day). Now it's happening again and my error message says:

host eig-east.smtp.a.cloudfilter.net [3.228.35.199]

   SMTP error from remote mail server after end of data:
   550 Connection Rejected - see http://www.spamhaus.org/query/ip/162.241.218.139 AUP#BL

I receive emails yo simon@padworks.plus.com, but cannot send them, with a message saying ...

Sending of the message failed. An error occurred while sending mail. The mail server responded: Unknown sender. Please verify that your email address is correct in your account settings and try again.

please also reply to simondowthwaite246@gmail.com

I'm having issues sending and outbound email and I'm not getting any error messages from the client. I have confirmed that the email server settings are correct. I am unfortunately unable to find a log or error console on the app to further trouble shoot all I get is a notification of "unable to send mail" with no error codes.

I have used Thunderbird for years and have updated new versions. This past week, I can no longer compose new emails; no prompt given for that function. What can I do? I am not a computer geek, so I don't really know how to fix this problem, which seems to be a software issue. Thank you.

I have not been able to get my emails today from Charter on my desktop. Everything was working fine yesterday but nothing in coming through today. It looks like it might load, message that it is downloading 1 of 26 and then says nothing to download. I look on Charter website and there are current emails to download but Thunderbird must have a glitch. I have been on the phone with Charter twice, all the settings are correct for incoming and outgoing ports.

I have looked at the settings in Thunderbird and they are correct. I can get the emails on my iPad and iPhone with the Thunderbird app but not the desktop.

Can anyone give me some direction of where to check next?

I use emojis in email, but recipients report that the text of the email arrives covered with emojis. I thought it was a problem with the receiver until a second person just reported the same issue with an email I sent them. Both are gmail accounts . . .

Bonjour, La copie des messages envoyés n'apparait pas toujours dans le dossier des messages envoyés. C'est très gênant, comment faire pour rétablir la situation? Je voudrai avoir en copie TOUS les messages envoyés. MERCI

I have been getting 'message blocked due to spam content' errors trying to send messages for the last two months on messages as short as three words. Not all but over half of them.

Cannot receive and email because I am told by AVAST that the certificate for inbound.att.net has been revoked. I am not at all technical and at a loss as what to do. Please help! Thank you.

This morning I started getting this popup in lower right part of my screen every minute :

Mozilla ESR Thunderbird Connection to server inbound.att.net has been reset

It continues over and over as TB tries to get new messages.

Also, AVG Free antivirus is telling me it has identified a site certification problem. LOCATION: inbound.att.net (POP) Process: thunderbird.exe Detected by: Email Shield

In TB Help it says I'm currently on the esr uipdate channel .....whatever that means Whats the issue here? Can anyone help?

when trying to download email today, says certificate for inbound.att.net is not trusted. android email and browser email are OK.

I keep getting this message: "We've identified a site certificate problem, trust for this certificate has been revoked." The location is "inbound.att.net" So I can't receive any E-Mails on my PC, but I can on my phone. How can I fix this?

ever since last update... can't send emails

Send Message Error Sending of the message failed. An error occurred while sending mail. The mail server responded: E5rTxqhwZYbiPE5rUxBTZm DMARC Policy Enforcement: https://postmaster.comcast.net/smtp-error-codes.php#ODM00001. Please check the message and try again.

Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) mail.twc.com timed out. Try again.

I have been using Thunderbird for my email for more than 15 years. About once ever few years a corrupted email file prevents me from downloading any more email. In the past I was able to use ftp to list email files on the pop server, find the corrupted file and delete it restoring my ability to download again.. It happened again on Oct 2 but I can no longer use ftp to access the files to fix the problem. IT appears that yahoo has fixed that problem in their email software but Thunderbird does not contain that fix. The bad file is somewhere in the first 4 to 10 files on Oct 2. It follows a file from American cruise lines.in my [redacted]@yahoo.com account using Thunderbird. I now have over 900 email files I cannot download using Thunderbird but can see those files using yahoo email software. Please fix Thunderbird.