Thunderbird Support Forum

Cox.net is transitioning from in-house e-mail to e-mail handled by Yahoo.com. Our cox.net addresses are supposed to (and apparently have) transitioned so that they still work, but are processed through pop.mail.yahoo.com.

It is my turn to be transitioned and I have been successful in doing so to the extent that I can send and receive using my address(es) ...@cox.net through Yahoo web mail and on my Samsung phone. I have not, however, been successful in either sending or receiving mail using Thunderbird on my desktop.

I have been successfully using Thunderbird with POP settings for years with four different cox.net addresses. [I'm currently just trying to get two of them working -- unsuccessfully.]

I am using Windows 10 on a Dell desktop. I am using Thunderbird 115.9.0 (32 bit). I have reset the POP and SMTP settings as directed by Yahoo. One of the errors I receive is: "Error with Account .... Sending of password for ...@cox.net did not succeed. Mail server pop.mail.yahoo.com responded (SYS/TEMP) Server Error - Please try again later." It then asks me to retry or enter a new password. I have checked the passwords saved by Thunderbird and they are correct.

I suspect, that with all the Cox accounts being newly routed through Yahoo servers that I am not the only Thunderbird user experiencing this problem. Does anyone have any suggestions? Is it likely to help if I uninstall and reinstall Thunderbird? Would I loose all my mail, etc. if I did that? [I did the delete and add account in my phone and that was successful, but I wasn't concerned about losing mail there as it is all on my desktop.]

Thanks in advance. billb1111

Hi. I have used Thunderbird for a long time. I have never had a problem accessing my hotmail account for emails. Overnight Thunderbird now posts error message boxes when trying to login to the hotmail server. It reports incorrect username or password. Neither has been changed by me and comparison with Eset Password Manager shows them to be correct. I can login to Outlook online using the same login credentials an get my emails that way. I have also changed my Outlook hotmail password while logged in in my browser and updated everything on the PC to match of course.

I have massaged the server Settings for hotmail and have had the system working again, for a while. Twice I have reset the settings to a different server and back again and that seems to clear the problem for a while. Then the error messages switch on again consistently. At this moment using "File" -> "Get New Messages For:" -> "Hotmail" works without any problem and the automatic scheduled checking reports "No messages to download" so it appears to be working. But that is after just coming back to my PC to find a string of failed attempts, each with its own error box, which have appeared since I last "fixed" the problem and assumed it was now fine.

My server settings are Type: POP; Name: pop-mail.outlook.com; Port: 995; Username: same as for browser access (which works); Password: As in Thunderbird's stored passwords matching Password Manager and working browser access.

In my paranoia I have even wondered if I am being locked out by Microsoft somehow. Can anyone suggest what is going on here?

I've provided all of the other data, no problem. But the <Your login> field has only "YOURDOMAIN\yourusername" in it as a format hint. The field carries an Info symbol, but it's greyed out.

There are many possible domains, e.g. microsoft.com, office365.com, outlook.com, each with possible 3LDs, and the domain-name of the organisation that provides my account.

The most obvious (MYORGDOMAIN\Roger.Clarke) gets the error-message: > Authentication failed. Please check the username and password. (I checked, and they're the same as I use for a webmail login there).

Leaving it empty gets this error-message: > Unable to log in at server. Probably wrong configuration, username or password. (That about covers the possibilities then ...).

Somehow my Thunderbird email password was changed and I didn't do it. How do I reset my password? Email [edited] @sbcglobal.net when or if you have an answer. Thanks.

Thunderbird updated to 115.10.1 (32-bit) and I cannot see any emails now. I use View > Folders > All. If I run a search, TB lists the emails. Have tried opening in Troubleshoot mode but still same, no emails nor inboxes. Windows Security Ransomware turned off for preparing for maintenance prior to TB updating itself. How should I go about fixing issue?

Windows 11, 64 bit Addons: Cardbook, Provider for Google Calendar

I can't receive emails at any address from those in Thunderbird. I have several addresses, some in Gmail but not all. And in each of them I get this message: The STAT command did not succeed. Error getting message number and sizes. Mail server pop.gmail.com responded: [AUTH] Invalid credentials. I am using version 115.5.2

when I try to send an email you ask for a pass word for jojack@dslextreme which I havent had for years

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I have a hotmail.com address. Until recently, it worked well as webmail, plus also from TB on laptop, via IMAP and SMTP.

A few days ago, the sending function via SMTP stopped working (not IMAP); and webmail is still fine. I've tried a lot to solve it, but to no avail.

My guess is that MS is to blame, but don't know how to reach someone better-than-hotline there.

Details see annex; OS is Win10, TB is 115.9

Would someone be familiar with this kind of problem? According to my traditional european quality idea, best should be to get in touch with an MS technician with access to the syslog, to hear what the system's response to connection attempts is - but this seems to be precluded? I wonder what alternatives there might be?

I am getting the Mozilla Thunderbird Email wants to access your Google Account all the time while using TBM, I have removed the gmail account and the pop up does not show, so I know it is for the email account just removed. I re-add the email address and enter the email address and password and let it find the config itself. Click Done, and get the Mozilla Thunderbird Email wants to access your Google Account again, then click Allow and get the Authentication failure while connecting to server imap.gmail.com. message in the bottom left of my desktop. How can i get gmail to work again please.

Hello. I cannot see the list of my read messages in inbox folder. I see that I have 1700 messages but I cannot reset the setting to see both the unread and read messages. Thank you for your help.

when clicking an email link this is shown

"Thunderbird is already running, but is not responding. To use Thunderbird, you must first close the existing Thunderbird process, restart your device, or use a different profile."

How do I make Thunderbird instead open a new email?

This is on Fedora

After moving from Win 10 to Win 11, I exported my TB calendar events on the Win 10 PC, and imported them on the Win 11 PC. Now I can't edit or delete the imported events. The "edit" and "delete" tasks are greyed out.

All help's appreciated

Hello, In the last couple of weeks, messages are not displaying as they did. So for example, I received screenshots of an airline trip I'm doing, but the message contained the following: [A screenshot of a computer Description automatically generated] Inbound Another example is receiving an email from a bank. Instead of showing the embedded link, it displayed as html. So, I can't read what was sent. Or it's hard to pick out the link.

I've gone to privacy and controls, but I can't find where I need to change this. Please help.

I wish to try K-9 Mail on my Android - eventually I want Thunderbird. When I start K-9 it offers me "IMPORT SETTINGS" and then says CHOOSE FILE. What file(s) do I need to bring over from my Thunderbird profile to get 1. the address book(s) and 2. the email account data?

Since Thunderbird updated to 115.7.0 yesterday, I can see message headers for new emails, but not the message content. Messages received before the update appear normally. When I click on a new message in the inbox, it will say "loading message . . . " , but then it does not actually load the message, and the message pane is entirely blank. Not getting any error messages. What do I need to do to get it to actually load the message?

Some hours ago my iCloud account stopped working on Thunderbird; I already tried re-entering the password, deleting and trying to add the account again, but it isn't letting me add it again, my account is working fine on all Apple devices and I have access to the mail on browser.

I've tried using the main iCloud address, the "alias" address, and using the real password as well as the unique "App Password".

Thunderbird version is: 115.7.0 (64-bit)

I have Thunderbird set up with two email accounts. Until today I han problems with outgoing or incoming email and had saved passwords. All worked fine. Then I had to change my internet modem and somewhere along the line my incoming password for one of the two email accounts got deleted. No idea how. So I went into Settings and deleted all saved passwords. After that I sent a test email for both accounts and was able to re-save my passwords. But when I "Get Email" for either account, nothing happens. No email arrives (there are new emails on both accounts if I check via webmail). But I also am never prompted to save a password for incoming email (mail.comcast.net) for either account.

Why isn't Thunderbird prompting me to save the incoming password, and how can I manually enter a password? I'm baffled and at wit's end.

Thank you!

I accidentally deleted a fairly large email, namely 3GB in the Thunderbird application, but when I checked in junk/trash the deleted email didn't appear. When I checked locally there was a file called Trash (no file format) with a size of around 3GB and in it there was an email which I deleted previously. How do I return the email back to the inbox?

All of a sudden all of my Comcast accounts are receiving the message: "Alert from account XXXXXX: Temporarily blacklisted IP Address - Try again later". Contacted Comcast and elevated all the way up to the top technical group and was told it was a Thunderbird issue. Tried resetting passwords, etc to no avail.

I've recently switched from Apple Mail to Thunderbird, and I'm realizing that one of the convenient little features that Apple Mail had that is missing in Thunderbird is that it would intelligently select which email account you are sending an email from depending on the currently viewed mailbox or who you've addressed it to.

For example, let's say I have two email accounts: a personal Gmail address, and a work account with an address that looks something like myname@company.com, with the Gmail account being the default.

If I start writing an email from my Gmail inbox or am addressing it to people whose addresses are totally unrelated from my work account, I'd like it to use the Gmail account, which is what it does.

However, if I'm currently browsing one of the mailboxes for my work account, or I address a new email to one of my coworkers who also has an @company.com email address, I'd like it to automatically set the 'from' address of my new email to my work email.

Thunderbird already picks the correct account when I'm replying. I'm hoping that it can also do so when starting a new email.

Is there any way to do this?