Thunderbird Support Forum

I have thunderbird backed up from appdata\roaming\thunderbird. I need to restore my corrupted mail app. How do I do it with Windows 10 and version 115.10.1? Can I simply copy saved Thunderbird over the corrupted one? Thank you. -- Don McGee

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 ...).

I am unable to send emails. I am asked to enter my password and have tried many times. The instructions to enter my password just keeps repeating over and over. I am at a loss as to what to do. Any suggestions?

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

Suddenly unable to send any emails. Able to receive / read. In Charter / Spectrum able to send. Port numbers are correct (143) for Incoming & (25) for Outgoing SMTP. Did try to change Outgoing Port to 587 per one of your posts. Didn't work. This is error message I get.

I'm using the latest version of THUNDERBIRD for WINDOWS (now 10 HOME), but this problem has existed for years with previous versions of THUNDERBIRD and former releases of WINDOWS, both HOME & PRO releases. And, it seems to be very specific. When i receive e-mails from (especially) 2 friends who both use AOL as their e-mail client, when I receive them, the imaged files (or memes) are always 'converted into attachments, and what shows in the Body Text of the e-mails is empty boxes. Yet, when I get e-mails from others, including from commercial sources, if there are images within the Body Text, they are present there. This IS very annoying because many times the e-mails I get from these two friends are technical e-mails, with clarifying images as part of the Body Text. When I have mentioned this to them, their responses are that n one else complains, only me, and so the problem MUST BE at my end, but that doesn't make sense, since when I receive e-mails from others (Gmail, etal.) any included images are fully where they belong. ++++++++++++++++++++ Secondly, WHY is it that when there are threaded e-mails in the Sent folder, the ARROW to expand the thread appears at the left side, but in the Delete folder the ARROW appears between the title of the e-mail & the next column? This IS very annoying!!!! Also, when I'm in the DELETE folder, sometimes only two options appear at the right side: Archive Delete, BUT in other incidences, there's a plethora of alternative options, and the Delete option is positioned in a different place. More often than not, I click on the option to send it e-mail to the Archive folder, when I really wanted to Delete it permanently. Another major annoyance!!!! Thank you robert herold

 17mkombi@gmail.com   OR   rhh.jr5387@gmail.com

I have 4 e-mail addresses and corresponding inboxes. One is my personal addy that I use for most legitimate business. The other 3 are leftovers from former businesses and a spam addy. I use those other 3 addys sparingly, but only for sites I want to maintain distance from, and any I suspect might be spammers.

Thunderbird has worked wonderfully for me for some years, but recently, I have been getting duplicate messages in 2 of my 3 dummy accounts for every one that is legitimately sent to my main account. None ever show up in that 4th account, but I did just receive an e-mail that was intended for that 4th account, and the inbox acted as it should (no duplicates anywhere).

I have spent a couple of hours with a very dedicated service rep from my ISP, and she was unable to find any solution. She suggests that reaching out to Firefox is the next logical step.

Shortly after the 115.10.1 update, I've noticed that emails are downloading, but either only a few show in the Inbox or none at all. I've never had this problem with Thunderbird before. Is there some invisible spam/junk folder that I'm unaware of?

I'm using POP with Dreamhost. Is anyone experiencing these disappearing emails?

Hello My Thunderbird failed pop access to my Gmail account, at beginning of month. Any try to fix, and even change from pop to imap don't work. I get the windows as shown i images as result. I don't like see oauth/legacy/consent in the URL. - Change setting in Google from pop to imap - Cookie setting updated as forum suggest - JavaScript true as forum suggest

Any hint on forwarding step? Thanks Lars Granath

Without having done any active change: For some time TB seems to not have passed on mails from my alternative mail account. I cannot seem to find the previously functioning gmx account in my settings.

For two days now I do not receive any mails at all. Apparently I can send them, though.

I restarted the programme and tried in safe mode, to no avail.

I am a simple creature, please advise or enquire in a manner an exhausted non-tech person may be able to follow.

After the latest update, Thunderbird does not open. On line instructions say to erase some programs in it's file location. Did that, and the program booted. However, today, it will not open again. Can you fix this issue with another release, or should I try to go back to the previous release? If so, how to go back to the previous release without losing all my set up? It is not practical to have to erase those files every time I want to check mail. Thanks, JT King jtking@zoho.com Catdoctor12@gmail.com

'just added 2nd gmail address to Thunderbird. Suddenly getting verification requests. I go through that process then asked for phone # for verification code only to be told the number already used too many times . Now what?

Already invested time creating some html code for email signature on thunderbird. Wanted to create something prepared for dark modes on IOS. Everything was fine until I detected on IOS (dark mode)some white rectangles outside my email signature code. It´s a problem that I cannot solve because it´s outside my code, and I´m wondering if you are already aware of this issue.

In case you want to test my code on a Thunderbird HTML email signature and see the result on an iPhone (dar mode), you can get it here: https://codeshare.io/dekBnR

I have had a few emails that did not show up in the inbox listing, so the message count at the top indicated more messages than were listed. Doing a search showed them, and by moving them from the search results to another folder, and then re-searching and moving them back, caused most of them to appear. But not all - I still have a message count of 20, but only 19 listed, see photo 1. Photo 2 shows the hidden email (from Barry Chandler). So the email is there, it's just not visible!

I received notification that my mailbox was full but I can't delete anything from the inbox, sent items or trash. It appears to delete but then it comes back. I've gone through the process of menu, help, profile, mail, trash but it doesn't seem to fix the problem. I've tried updating and it says it's updated. Any help would be appreciated! Thank you!

I want to prepare emails in advance (in the Outbox folder?) and have Thunderbird send them later, at a time that I specify when I prepare them. I looked at the Events and Tasks tab but I can't see how to do what I want with a task. All the prepared emails can be sent at the same time. Can it be done? Thanks Peter M