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So, from time to time I need to find a sent email, it is not in my sent folder, I check my settings and there it is, I then set it to use my sent folder on the IMAP server, this works for a while, but then seems the next time I want to find something in the sent folder it has reverted back. Any Thoughts?

Hi, I'm a new user. I cannot send email. Receive is ok.

I get this prompt: Password required for outgoing (SMTP) Server mailhost.zen.co.uk So I add the password, but then I get this error: Login to server mailhost.zen.co.uk with username zen53214 failed. Retry - Enter new password - Cancel I add a new password (the one I use on the zen webmail portal) and I get this message: Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) AUTH command not available at this time. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'. The outgoing server setup is the following: Description: zen53214 Server name: mailhost.zen.co.uk Port: 857 Connection security: STARTTLS Authentication method: Normal Password User name: zen53214

There is a sync issue with zen email password but I cannot change it on the zen portal, because the password in ThunderBird doesn't have a special character and Zen will not let me change the existing password to one that doesn't have a special character.

What can I do to resolve? Please help. I'd like to stay with ThunderBird email.

Thanks!

Mit meinem e-Mail Konto .gmx.de kann ich keine eingegangenen Mails mehr weiterleiten und auch keine neuen Nachrichten mehr versenden. Nach dem Betätigen "Senden" kommt immer der Hinweis "Postausgangsserver SMTP kann nicht authentifiziert werden.Überürüfe Passwort und gewählte Authentifiziermethode unter Kontoeistellungen " .Ich habe aber nichts verändert und weiß nicht was ich in Einstellungen überprüfen soll oder ändern soll.

I have three email accounts all from different sources.

Two of the three accounts work fine but one account will give me this error message. I back up the Thunderbird folder every week and copied the backup to the working folder and I still have the issue.

I've been getting multiple emails of the same in a few folders. I do have a lot of Filters set up for the account affected.

I recently downloaded Thunderbird. (I used Thunderbird in my older computer. It was fine) Now I can receive post (<edited>@internet.is) but I can´t send post. Why is that?

Gísli Steinar Sighvatsson

My name is graeme , my wife Olivia.

I have many many messages from various people; if I reply to a a mail from "fred", Thunderbird creates a mail:

to: fred@xxxx from: graeme@xxxx

I have several messages from my wife , that behave in this same fashion (ie , as you would expect) but ONE message, when I reply the message displayed in Thunderbird (ie NOT YET SENT, so no SMTP etc yet involved) says:

(it does NOT have a REPLY-TO header BTW)

to: graeme@... from olivia@.....

...I've search back though my mailbox and all the mails from my wife work as you would expect, bar this one ...AND ONE OTHER that I found:

This says:

from olivia@.xxxx to: company@xxxx, olivia@xxxx. graeme@xxxxx

When I hit reply , it generates a message:

from olivia@xxxx to: company@xxxx, olivia@xxxx. graeme@xxxxx

So the from and to in the reply are exactly the same as the from/to in the initial message (they are not swapped)

So, to be clear 99% of messages are fine, it's just one or two cases where I get this odd behavior.

Since last night, I sometimes get failure to connect to SMTP Server. This happens not always, but frequently. I'm using 0AUTH 2.0.

It only happens when I try to send s.th. Receiving is ok.

Did anyone else experience this and is there a remedy?

Thanks in advane

My thunderbird email is broken and I cannot interpret the error message. I found a similar problem at https://support.mozilla.org/en-US/questions/1281109, but I have not been able to follow the solution.

The error message is:

Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) promail.ptd.net failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

When I access my email at ptd.net, using firefox, I can make a full connect. But I cannot connect to email using Thunderbird, which is my preferred email tool.

My hope is to have a dialog in this thread with someone who can walk me through the steps to get thunderbird working. Can someone help?

Jim A

Thunderbird version 147.0.1 does not send email. I use Windows 11 Pro with all updates current. I can receive but cannot send (reply to) emails. I have not changed any email settings. What is the solution?

We are a fatcow.com user, I know the company has been bought out by another company, but outlook stopped working. They no longer support outlook 2010, so I switched to Thunderbird. I get all my new messages fine, but it errors trying to send new messages. Error message has been uploaded.

thx

I have smtp.gmail.com set up as my outgoing server (port 465, username = my gmail address, Authentication = OAuth2, connection security = SSL/TLS, also tried STARTTLS with port 587). There doesn't appear to be any way to set the password in the "Outgoing Server (SMTP) Settings", even when I click "Edit". Nor can I add a password to the "Edit/Privacy&Security/Saved Passwords" dialog box (which allows you to see existing passwords or remove them, but not add any).

When I try to send an email, the "Sending Message" dialog box pops up, and after a few seconds a second box pops labeled "Login to account 'smtp.gmai.com' failed". This box has three buttons: "Enter New Password", Cancel and Retry. Clicking on the "Enter New Password" button does not offer me the chance to enter a new password--instead, it immediately takes me back to the "Sending Message" box, which then immediately takes me back to the "Login...failed" box. There is never an opportunity to enter the password!

TBird 140.7.0esr, Thunderbird for Linux Mint. Mint version 22.3.

Sending works ok if I choose a different SMTP server.

Hi, my Gmail account on Tbird is failing to copy sent emails to the sent box. The email hangs with "connecting to Imap Gmail" and then "your email was sent but a copy could not be placed in your sent box". I have re-downloaded Tbird, deleted and re-connected to Gmail but the problem persists. I have tried the fixes mentioned on this forum in 2024 (e.g. changing the destination folder as suggested, changing threads to "all") but nothing seems to work. Help!!

the problem is that when I receive an email it goes straight to delete folder there is no where I can set the filters to filter of my choosing, I have lost losing all in coming mails I am talking with telstra as one page said it is an IMAP problem in that it just removes emails for no reason but in your problems page it says I can change the filter settings but in the settings there is no place to change filter rules

I am getting very frustrated  after 6 hours and not getting anywhere  I have uninstall Thunderbird and reinstalled  but nothing changed 
running win 11os  on desktop 

what do you suggest

Jeg har modtaget en mail som jeg vil videresende til en anden person. De modtagene mail ser sådan ud se billede Skærmbillede 2026-01-28 152737.jpg Når jeg sende denne besked videre kommer der først en lang teknisk liste, se skærmbillede Skærmbillede 2026-01-28 153123.jpg

Hvordan undgår jeg at få al den unødvendig information ?

Med venlig hilsen Michail Grunnet mobil [edited phone# from public community support forum]