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since 8/22/24 I have been unable to send email from one of my personal domains. Same install of T-Bird successfully sends SMTP via Gmail and my other domains.

I receive the error shown in the first photo below. Sending of the message failed. An error occurred while sending mail. Outgoing server (SMTP) error. The server responded: us2.outbound.mailhostbox.com ESMTP not accepting connections.

I have been back and forth with the domain tech support. Here are the email content (parsed for easy reading)

Me > I am having difficulty sending email. > I can POP email without issue. > I am using the most recent version of Thunderbird; version 128.2.0esr (64-bit) > When I send (with or without an attachment) I get the following error: error as shown above > I have never seen this error before and cannot find it in your knowledgebase files. > My SMTP settings: > > server name: smtp.drachenfelspress.com > Port: 587 > Connection security: None > Authentication method: Password; transmitted insecurely > User Name: mcaputo@drachenfelspress.com

Tech: If you are able to download emails from our server but unable to send out emails through the same, then it is likely that your Internet service provider is blocking port 25 on your local network. For such ISPs, you must use their SMTP server to send out mails on their network. Customer Support - TH

WELL Since I was using 587 that didn't help at all.

ME the error says YOUR server, "US2.outbound.mailhostbox.com ESMTP not accepting connections." This is YOUR error, not my ISP. I was using port 587, my ISP does not block port 25.

Tech try non-SSL using the following: STARTTLS Auth Normal change server name to smtp.<yourdomain>.com

Me No change

Tech Try reducing TLS version back to 1.0

Me No difference. Restored TLS 1.3

Tech return to the mailhostbox.com server Port 587 STARTTLS Normal full username

ME ok, no difference. That is where we started, didn't work then, doesn't work now. (second photo)

Tech Try port 25

ME Same results

Tech <resets my password>

Me Did you reset my password overnight?

Tech To investigate the issue, we needed to reset the password for mcaputo@drachenfelspress.com, to enable us to configure the Thunderbird email client on our end. The temporary password is "Se!!P)iqk2" We have successfully created a Thunderbird account and were able to send emails through it without any complications. The configurations we utilized are displayed in the screenshot provided below: us2.outbound.mailhostbox.com Port 587 STARTTLS Normal full username

Then change your password.

Me I appreciate your response. HOWEVER the issue remains.

Tech We have already replied to you on this matter.

ME Tried sending on port 465 and it indicated "sending" but hung there. Using Telnet I am able to access the us2.smtp.mailhostbox.com on port 587 but I cannot trigger an AUTH login through TELNET. (see CMD screenshot below)

Tech What is your IP address?

ME It is not static, but today's is (IP address at the time given)

Tech We have done further testing by setting the ThunderBird email client for mcaputo@drachenfelspress.com to both SSL and Non SSL connections. We can see both the implementations being fetched correctly without any issues. <provides two sets of POP and IMAP settings>

ME I can POP successfully, have always been able to. Problem is with SMTP, outbound mail.

Tech Provides two incomplete setting combinations: us2.smtp.mailboxhost.com port 587 smtp.drachenfelspress.com port 25 Upon using any of the two implementations, SSL or Non SSL as configured above, there should be no issues in setting up the email client.

The SMTP and IMAP passwords (if asked any) will be the same as your current email account password.

We are unable to replicate the issue you mentioned. Customer Support - TH

ME I am unable to replicate your success. I still cannot SEND email.

Tech We have rechecked and can confirm that we are able to setup the email client on the latest version of thunderbird i.e 128.2.1 as well using the same IMAP settings as shared in previous email. We are afraid that we are unable to replicate the issue you are reporting after numerous tests from our end. As a suggestion, could you try to connect to your mail account from a different network or ISP? Customer Support - TH

ME Again, IMAP is not used on this account the issue is with OUTGOING mail. Tried both SSL and non-SSL settings for drachenfelspress.com outgoing mail will not send.

That's ALL I have right now. I am going out right now to try to send email from a laptop with a fresh t-bird install while sitting in a McDonalds on their wifi...

Help?

Hi, Please see screenshot. The "From" field does not have my address and there is nothing to select in the drop down. I cannot type into the body of the email either. Also, when I click on "About Thunderbird" I do not get a pop-up window with version. I am receiving email. Thank you Cams

Basically, I'm trying to use Thunderbird to clear some space on my Gmail account. I'm using IMAP. However that just won't work (most of the time). If I archive emails to a local archive or move it to a local folder, a) nothing happens, b) the files are actually moved (and appear in the archive folders)... but the mails remain on the server when checking through Gmail itself. Also, the mails reappear after 10-20 minutes. c) mails are actually moved and they are removed from the server. Mostly it's a or b.

I have tried all deletion options... delete directly (doesn't appear to work), mark as deleted (won't free up space) or move to Trash. Depending on the folder it used to work for a short while, with the mails appearing in the trash folder, ready for deletion. But that stopped working again.

This is all super frustrating and I have no idea if this is a bug or expected behaviour.

Hi

I recently updated to 128.2.1 esr and my message filters are not working. When I open "Tools" > "Message Filters" the filter list is empty but when I open the msgFilterRules.dat file on my profile the message filters are there. (I made lot's of them.)

When I switched my computer on this morning, Thunderbird refused to dowload new emails. Nothing I have tried solves the problem. A message in Crash Reports says:

"Shutdown hanging at step XPCOMShutdownThreads. Something is blocking the main-thread".

My copy of Thunderbird is up-to-date and accesses two accounts (Gmail and my university account (IMAP)). New emails are missing from both.

Any advice on how to solve this problem would be appreciated.

Thank you,

David Harvey (david.harvey425@gmail.com)

Our email accounts are attached to our host domain name. We are going to be changing the host domain location from a smaller local provider to Spectrum Internet to service. The email addresses XXX@xxx.com 'will not change, only the server host location. As a backup, we are moving all existing emails located in subfolders under the email accounts to the LOCAL folder (creating new "trees" there) so they are in a permanent location to be unaffected by the server change. From my knowledge... we will not create new email accounts in Thunderbird .... only change the server location, ports, etc for that specific email. I want to confirm with others that this should be the plan?

Thanks for listening: Last week, Thunderbird began returning this message with each attempt to send mail: An error occurred while sending mail. The mail server responded: <tedcomo@chartertn.net> sender rejected. Please verify that your email address is correct in your account settings and try again. I have no problem receiving mail. At the same time, my wife began having the same problem on her laptop, which tells me either Charter, or Mozilla, changed something. I started with Charter. They told me to rename both servers to mobile.charter.net (outgoing mail was formerly smpt.charter.net. No effect. They then had me log into Spectrum and send a test mail directly from my account. It went through OK and they said the problem had to be on Mozilla's end. Any suggestions?

The global search in TB is completely defective. I am now running 128.2.0esr and hoped that update might fix it. It hasn't. I just wonder, are there any older or non ESR versions I can downgrade/move to, where the search is fully functional?

SOME EMAILS CAN BE MOVED TO FOLDERS. LARGE NUMBER OF EMAILS SOMETIMES CAN BE MOVED TO FOLDERS. THEN, ALL EMAILS MAGICALLY APPEAR AGAIN. WHAT GIVES? IS THERE A SPECIFIC SETTING THAT IS CAUSING THIS GEM?

Hi,

I have Thunderbird nebula 128.2.2esr (64-bit). The msf files seem to corrupt many times each day. This results in 'repairing' folders or when this fails - and it is pretty frequent - restarting Thunderbird.

I have tried completely deleting Thunderbird and all data files - reinstalling - and the same result.

Please help. Shalom Norman

My e-mailadrees is alois.hufkens@skynet.be I get continously the message , I translate because the message is in Dutch, "Enter your password for fd045290 on pop.skynet.be". Can anybody help me? My phone is [edited phone# from public community support forum]

Using TB 115.15. When I delete a number of messages, then empty the trash, I cannot delete another message until I restart Thunderbird. Is there a limit as to the number of emails I can trash prior to emptying the trash?

My Thunderbird randomly stops checking for email messages, and will not even check when I click 'check' (the cloud). I have to dismiss Thunderbird and restart it.

Hello,

I can't receive new emails on my Thunderbird account because every time I try to refresh my inbox, I get this message:

‘An error has occurred while saving your messages. Make sure that the file system gives you write rights and that you have enough free disk space to copy the inbox’.

No problem with webmail.

We have another computer in the office connected to Thunderbird that receives all our emails. All the settings are the same, except that we haven't updated Thundebird.

We use a POP system.

Thank you for your feedback!

I have update to 128.2.0esr (64-bit) ever since i have done so my emails show as a code like below

The From, Subject also do not show

To see my emails i am dragging them to a folder, clicking on properties and then repair.

Can someone assist please.