Thunderbird Support Forum

I have been using Thunderbird for many years. In Thunderbird I found this message: "Login to server inbound att.net (username) failed." When I tried to send an email I got this message: "Sending of the message failed: Unable to authenticate the Outgoing Server (SMTP) outbound att.net. Please check the password and verify the "Authentication method" in "Account Settings." [outgoing server (SMTP)]

I went to att.net and I am still receiving emails. In fact, I received an email from Mozilla Support that allowed me to sign into Mozilla Support.

Please help so I can send outgoing emails from Thunderbird.

Thank you

As stated above I can receive email but cannot send email since the last update over a week ago. Also when adding a bookmark it does not show up anywhere that I can find. I seems that I have lost some bookmarks and now it shows two bookmark menu's.

Yesterday, Thunderbird, version 115.11.1 (64-bit) suddenly stopped sending and receiving all emails. I received the following error messages: 1. Login to server pop.mail.yahoo.com with username ***@att.net failed. 2. Login to server smtp.att.yahoo.com with username ***@att.net failed.

I reset my password, but that did not help. I am continually prompted to reset the password. I verified that the ATT.net web account is working properly, where I can send and receive emails. I also verified that the server settings are all correct.

Incoming server setting: pop.mail.yahoo.com, Port 995, Connection Security: SSL/TLS, Authentication Method: Normal Password.

Outgoing server setting: smtp.att.yahoo.com, Port 465, Connection Security: SSL/TLS, Authentication Method: Normal Password.

Could you help me resolve this problem.

Thanks very much,

Norm Franke norm.franke@att.net

I read through the previous discussion on this issue since I am suffering from the same issue of links not working as expected. I regularly need to forward messages which include links and none of the suggestions mentioned worked for me, and I do not recall this being a problem in the past.

I currently run Thunderbird 115.11.0 on Linux Mint 21.3 Cinnamon & have been using Thunderbird as my primary Email package for many years across multiple computers.

The work around is to to copy any email that is to be forwarded to the Drafts folder. Links are preserved and the message can then be edited as required and sent complete with the embedded links.

Hope this helps others who have the same problem.

In most recent iteration of Thunderbird, my emails arrive hours late... (They're also forwarded to other email addresses, and arrive on time there, so the issue seems to be downloading into Thunderbird). It happens also when I "download now", that is, the emails that are on the server or downloaded on my other accounts don't download to Thunderbird. This can be anywhere from 2 hours to 12 hours late.

Hello, since May I have not been able to archive messages on the @wp.pl account by years and month. The archive button does not work, and when it does work, the message goes to the general archive directory. I don't know how to fix it, please help.

Thunderbird downloads emails properly when first opened but the comes up with error as per attached for subsequent downloads. It does this for all (5) email addresses I have. Every once in a while when the error message comes up, Thunderbird freezes completely and I have to force quit. (on Mac)

My calendar stopped syncing one way: when I add an event in Thunderbird, it does not appear in Google calendar. It worked fine until about a month ago. I am using version 115.11.1

Thunderbird has suddenly stopped pulling in email, please help. It just says 'Checking mail server capabilities'. I have changed no settings at all. Webmail works. Email on my phone works. So it's not the ISP or the server or anything like that. It's just on Thunderbird where I can't do anything, but I've not changed anything so I don't understand.

When I try to send email it fails and says: Sending of the message failed. Unable to communicate securely with peer: requested domain name does not match the server’s certificate. The configuration related to mail.mandyhaggith.net must be corrected.

So please can you tell me how to correct the configuration?

Thank you for any help you can offer.

Best wishes Mandy

Dear community,

using Thunderbird for my workflow with mails and tasks, I wonder if it is possible to create a task automatically from a flagged email.

Of course, I know it is possible to convert mails to tasks, but first I would like to speed up the process and second, it would be great, if TB could also convert mails which were flagged on a different client, e.g. on my mobile phone: 1. mail is flagged on phone, 2. flag is sync on server, 3. TB creates tasks on this mail when synced with server

Alternatively/additionally, does anybody has experiences with using IMAP flags as trigger in automation scenarios e.g. in zapier, make.com or Power Automate?

Thanks for your help, Roland

Hi,

I am running Thunderbird 115.10.1 (Flatpak) on Ubuntu 20.04. (no extensions except birdtray) I have 4 email addresses added to my TB, and I like to see all of them together, therefore I am using Unified Folders. When I am accessing Unified Inbox, TB is very slow and basically frozen until it loads this folder (often a pop-up appears that 'TB is not responding'). it takes between 30-60 seconds to load my emails (either on start-up, or clicking on another folder, then going back to Unified Inbox). Every other folders open almost instantly. I have to admit I have a lot of emails in the Unified Inbox (~20K), however the inbox of my main email has 18K, and accessing that folder separately is instant. So any operation, other than opening Unified Inbox, is quite snappy.

This issue persists since I upgraded to v115, even when I did an OS reinstall (also tried installing apt (v115.11.0)).

I have seen this answer: https://support.mozilla.org/en-US/questions/1428374#question-reply however, nothing changed by resetting the folder.

All the gmail entries & passwords deleted, remaining email passwords replaced, as of this morning.

I replaced them, and then so did they. I just yesterday deleted my online life... I'm sure just a coincidence.

Here's half of one they used: M.C555_BAY.0.U.-Co2UA6qeq4JOFgsvOCkdA**pHYS5XqT3TfRXLZAdnUxGM361xXXF0iCTeAaY5pXNyRoEu7KvIh3*uCkYXNAKRvbL7UnBYVnODYaRQ8e5lPvftncJgK1yNc9TzeqTMW1BCwqdeBAjmbGg

Suggestions? (Other than accept the dark side & sell your soul)

Hi – I have been with Thunderbird for a while now but didn’t use your email program as I have been using Gmail for several years and still do. When I finished with my previous ISP, I copied the folders holding all my old emails to the hard disk on my PC. Is there any way I can use Thunderbird to read/delete these emails using my hard drive as the source and without using an ISP?

Very soon after startup it begins to stutter with the spinning beachball of unresponsiveness. At first it will spin, then come back for a few seconds, then spin again. Eventually the whole app is unresponsive.

The troubleshooting steps I see on here all start with "Go to [some location in the menu]". I can't do anything with anything in Thunderbird. I can force it to quit and start it up again, that's about it.

It is also always asking me for the passwords of some of my IMAP accounts. These are big accounts, some folders have several hundred thousand emails. The Inboxes are smaller, maybe a couple hundred in total at the moment. The last configuration I was able to make put it into Unified mode.

The damn thing is that after having been useless like this ever since I installed it, last week it started to work fine. Stayed that way for several days. Eventually that failed, though, and my whole Mac ended up locked up the way the app is, I had to manually power it off.

I don't know if it writes any info about what it's doing to a log file somewhere, I am not having much luck trying to find any information here. Just other people with similar problems but no substantive replies.

Using Thunderbird on an older Mac laptop, running macOS Monterey 12.7.5.