Thunderbird Community Forum

Hello,

I just switched to Thunderbird from Outlook and so far it seems nice but one problem when I click on the get messages cloud icon on the top left of the screen I receive no incoming messages. Now if I go to one particular email account (I have 8 email accounts) and right click and left click on get messages, new messages come in.

So my questions is, why doesn't all my mail come in when I click on the get messages icon? Am i misinterpreting this?

Thank you!

The receiving and messaging has been intermittent over the last few days. The latest message came in at 07:45 this morning

David Malin ([edited[ @davidmalin.com), phone [edited from community support forum]

I had to install Windows 11 fresh because of multiple issues with my PC (I upgraded from 10 to 11 6 months ago). I installed Thunderbird fresh, and am trying to get it to see my existing data with is on my D drive. I browsed to the folder in Account Settings, but it's not showing up. I have years of mail and don't want to lose it.

There are too many options in the help for me to know which are actually related to my situation. I thought I was ready to do this, but am surprised at how difficult it is compared to the last time I did something similar.

Any help, even just pointing me to the right place to look for help, is appreciated!

Thanks!

Using Thunderbird 140.5.0esr (64-bit) email program, can not send emails. Get message: Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: Connection from 69.119.30.125 refused. Have multiple email accounts - all get same response. Have tried several computers -all get same response. Can receive emails with no problem. I have spent several hours with my service provider [Optimum] checking/changing Server settings to no avail. They claim all my settings are correct and say the problem is not on their end. On the Optimum website email – I can send emails with no problem. I installed Outlook and set it up to the same servers and can send emails from there so it would seem Thunderbird is the problem.

Running WIN10 on 1 machine, WIN11 on another. Both same issue

I have installed Thunderbird as a first-time user on a new computer. I am able to receive emails but cannot send. I have the correct outgoing server settings and confirmed this with my ISP. They recommended that I check to see if my antivirus software is preventing from sending, so I uninstalled Firewall and it's still not sending. Can you assist in any other options that I should try to get emails to send?

Three weeks ago I attempted to migrate my TB profiles from a 2014 mini-mac to a 2024 mini-mac. I thought I did a better job of backing up my profile using CCC than I actually did. In the migration to the new Mac I lost all my subfolders from the last 20 years. Apple created a new Profile and 2 restoration Profiles on the new Sequoia based mini-mac. I wasn't familiar with these and panicked. I copied those files, took them back to the original mac and tried to follow Toad-Hall's method of restoring the subfolders recommended to bmack1 on 23/11/22. However, I failed to carry out the step of going up two levels in the path of the Library to copy the entire "Thunderbird" file and only copied the Largest restoration file. This in turn, "contaminated" the 2014 original Thunderbird mail profile and only an Inbox and Trash subfolder remained. Today, after 3 weeks of searching and reading the generous contributions of this community, I came across a post explaining that the "sbd files" will show the subfolder headings I created in the original sought after Profile. And I found it!!! My problem is I have re-read Toad-Hall's method of re-installing the original Profile and tried to carry that out to the letter by placing the old Profile within a Thunderbird folder and switching it with the current one. But it's still listed as the "Restoration qqg...file" and probably shouldn't be, but I don't want to go any further and risk losing it because I feel I almost have it. So any guidance would be greatly appreciated. Thank You.

TOPIC 1 In Betterbird there is the option to colour the email account. The only option in TB is to change the colour of the email envelope icon. There used to be a extension that achieved this but fell by the wayside in TB 115 I researched this on TB forum on reddit.... https://www.reddit.com/r/Thunderbird/comments/17unvb1/different_account_colors_in_thunderbird_115/

It made interesting reading and I did download the 'account colours' zip to install and see if it worked. Only thing is that I do not know how to install it........can someone brighter than me tell me how to install it and to remove it if it doesn't work. Many thanks.

Any user views on Betterbird over TB. The developer has done a great job and has one thing I do like and that is the ability to colour the highlighted email account rather than just the envelope icon. Experiences are appreciated so I can make the informed decision on which to use. Should I decide to use it how does one just port TB and its settings over to Betterbird.?

Thanks for views.

On Monday, 17 November 2025 the Security Certificate expired and I stopped receiving emails both on my computer and Andriod Device. As a result I am not receiving any emails through Thunderbird, but I can go to email host site to view them.

I logged in my computer tonight and clicked here and clicked there and the error message: "The certificate for mail.homebizmall.net is not valid for that server. Someone could be trying to impersonate the server. Create an exception but this could mean that someone has stolen your certificate and may be able to impersonate you."

So it seems the POP server and the SMTP server certificates were only valid for 3 months and I was FORCED to create the exception for both servers. Now I am worried the security has been breached.

By clicking here and clicking there, I stumbled on a few people who seem to have this problem, but each with their own limitations. My operating System is Windows 10 without the option to upgrade. I have not extended the security updates because I don't understand if it is just the operating system uploading to the cloud or everything on my computer and I am not prepared to do the latter.

Is it safe to leave the band aid on that I have used for the moment? Can I create an exception for the phone? Or is there a glitch that someone needs to walk me through fixing?

Thanking you in advance

Clinton

I'm using Thunderbird with my GMail account. I've added all the GMail folders and can access them without any problems. However, I'd like to add a new folder. Is it possible to do that in Thunderbird or do I have to log into my GMail and do it there? I'm using Thunderbird 145.0 on Windows 10 Pro 64 bit.

MY email ISP is CenturyLink. I CAN use their WEB email site, so I know the password works. My old email had a Q.COM suffix, but CenturyLink recently said that they are abandoning that domain and that I now have to use MYCTL.NET as a suffix. I changed that in TB and now TB Fails to sign in! I have looked and looked at the TB config and still it doesn't work. Using POP for incoming email, have the correct POP server name, PORT and Encryption (SSL/TLS). I CAN ping pop.centurylink.net ....

Any suggestions would be greatly appreciated!

Thanks Nigel

I ordered some batteries from Amazon on 15/12/2024, 17:23. I presume they arrived, and I subsequently deleted the email. It has suddenly reappeared in my Unified inbox today, but not in any of the inboxes of the Unified Folders.

I am curious as to what caused this.

Roger

I must be doing something wrong. I am new to thunderbird, migrated from Eudora since I can't send mail with Eudora anymore.

I tried to configure Thunderbird as much as possible like Eudora, but ... it doesn't receive nor send mail. On the surface it looks fine, it seems thunderbird logs into the server, it seems it sends mail and checks for new mail, only I don't receive anything, nor send anything even though it looks it does. So what am I doing (or is going) wrong? (I can still receive mail with Eudora and today I checked and received 54 mails, none with Thunderbird)

if firefox is my designated browser and i open up the vivaldi browser and take a screen shot in the vivaldi browser, how do i paste the vivaldi browser screen shot in my thunderbird email? Thank you....b³

I have several email accounts that don't work well for me. Since Firefox has been my primary browser for over twenty years, I turned to Mozilla. I like your company's open source method and people-based philosophy. So I signed up for Thunderbird just now from your website. But I am not all that tech - savvy (I'm a baby boomer who started using personal computers at age 34 in 1984, and internet in 1990.) I'm 76 years old.

Is there someone who could walk me through setting up my new Thunderbird email account, and then moving my emails and address book from my current email server on Rackspace? And also disconnecting Apple Mail as my default outgoing mailbox, and set up my new Thunderbird account in its place?

I'm willing to pay for some help!

I've been running Thunderbird 145.0 very smoothly under W11 since 145 was released on esr. 24 hours ago, after making no changes to any software at all, I found that the following message appeared when i tried to download mail routinely from my Gmail server.

It reads 'Unable to write the email to the mailbox. Make sure the email system allows you write privileges, and you have enough file space to copy the mailbox'.

Does anyone else have this currently? I have used Thunderbird for over 15 years without this occurrence.

And yes, I do have write privileges (or I did until 24 hours ago) and there's plenty of space available.

I have a backup profile available but before I turn to that is there anything else I can try?

Thanks.

I am getting the following message when trying to get my emails.

'The certificate for imap.gmail.com does not come from a trusted source'

What can I do?

To be clear, I seriously doubt the problems I am encountering are TB's fault! The problems may be my fault since I've grown older, I've tended (believed) using new versions of software present my mind a BIGGER challenge than using the older software/version I have been successfully using? I'm still using Version115.10.1

After our ISP chose to start using Zimbra Oct. 7, 2025 and their tech support could not assist me in getting TB working the had me remove POP3 settings for TB and change to IMAP with their software.

FINALLY someone helped me get TB working with IMAP. For 3 days grrr. Now the ISP says I need to use their web mail, Zimbra.

So might downloading the current TB version and somehow get the In box, all the folder contnets etc. over - into the new TB help?

I was going to backup everything tonight, now I have little to NO hope, without help!

THANKS & remain WELL plus be SAFE!

Robin