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Hi Mozilla Community I have attached a large-ish file 19.7 mb (a video) to an email. Pressed send and an alert comes up telling me I should use file share because ... and this is my issue .... the email is (now) 27 mb in size. I have updated Thunderbird, I'm using Imap and the TB version is 91.9.1 My computer is a two year old HP X360 laptop running Win10. I'm also using Bitdefender Total Security. I have tried several times with blank emails (no words) and a video attachment and some with just a few words and the attachment and also with other size attachments. Same result. This also happened with a 33mb pdf attachment, the alert saying the email size is 43mb I don't know where this extra 7mb or 10mb is coming from unless the alert calculation is wrong. Surely sending a blank email doesn't require this much data. I'm interested in others views and ideas. regards David

I am using v. 91.9.1 of Thunderbird e-mail

I have been running 4 e-mail addresses, all with BT.

This last week 2 of those addresses have stopped sending outward messages although I haven't changed anything in Thunderbird or BT.

The other 2 addresses work for both in & outgoing mail.

On the failed outgoing mail I get the following message:- "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.btinternet.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'." BT says they can't help. The problem is with Thunderbird??

Any ideas ? Regards David Bates

Hello,

I sometimes receive large file attachment while using Thunderbird. My current version is 91.9.1. When I try to save the attachment to local computer, it saves the file as 1KB file size with no error messages or anything. I did not have this problem in the past with older Thunderbird version.

Does this problem happens only in the newer version? I was able to download the same attachment using gmail. I hope that I do not have to go through this every time I get a large file attachment.

Thank you.

I followed instructions posted on a TB fourm on how to generate an app password in order for my TB to work with AOL. I'm receiving mail in Thunderbird but can't send. I suspect that I may not have followed the instructions completely and would like to start over. Do I need to delete the AOL generated password on AOL and create a new one or just create a new one for the outgoing server? Would appreciate any help! JD

Right now, the messages in my threads pane show up in colors associated with their tags. This isn't a functionality I need and it makes it difficult for me to read a lot of the messages. I just want messages to show up in a single color -- black (or white on black would be great, but I don't know how to set a dark mode if one exists). I suppose even better would be the ability to have certain tags affect color and other not.

Any easy way of doing any of this?

Hi folks. I got a popup today advising me to upgrade Thunderbird to the newest version. I thought, "hey why not, I've been using Thunderbird for YEARS, I like it it's great"....so I did I can no longer connect either of my gmail accounts or my icloud account. Is this a known problem with the upgrade? If I wait a bit will "it fix itself"?

Any ideas?

Thanks!

Hi, I want to use Windows Task Scheduler to send command line emails via Thunderbird.

I have found only: thunderbird -compose "attachment='C:\first.txt,C:\second.txt'"

This works. But I also want to include email to, subject, text body and send.

I have tried options like Blat. Blat works but not with gmail.com as they block it. So with Thunderbird installed locally I may be able to work around the new gmail restrictions.

Many thanks.

After a complete hard drive meltdown, I had to re-install windows (10 Pro) and then TB, which is now a blank slate. I have my old profile stored. But in it, my two primary e-mail accounts were POP3 (alongside a number of IMAP accounts) and I was never sure how to switch them to IMAP without having to change the e-mail addresses. And I always quickly moved e-mails out of the inbox into a series of local folders for storage. So pretty much everything I need to reference is in some kind of local folder. So my question is: 1. Is it possible to selectively import local folders from an old TB profile into my newly-installed TB? OR 2. Should I load my old profile and then try to change the two primary accounts to IMAP and can I/how do I do that while keeping the e-mail address? I currently have the new TB on my desktop and the old TB with my profile on my laptop with the "check for new messages" disabled on all accounts. NB I am 60+ and while relatively computer literate for my age, maybe somebody could ... to quote Tom Hanks ... explain it to me like I'm a 3-year-old :0 TIA for any help, Rebecca

I'm a long time user of Linux Mint. Now on 20.3 and Cinnamon desktop. Also a long time user of Thunderbird. Now in version 91.8.1 Always used the "allow insecure apps" in my gmail account settings and used normal password stored in Thunderbird. Google urges to change the authentication method to oAuth2. Tried everything to no avail. Always "authentication fails when connecting to imap.gmail.com" Cleared all cookies, allowed them, deleted all saved passwords, followed all published advise I could find, and nothing. Then I made a brand new profile pointing to an empty dir and entered my gmail address and checked everything. Same result. In despair I installed Evolution and all run fine at the first try. Should I really give up on Thunderbird? Thanks in advance for any help!

How do I change the font size in Thunderbird? I am talking about the font size for everything. The titles, the menu titles, the messages. Everything is too small. Is there a way to see what has changed from default font settings or a way to reset back to default font sizes? Thank you

I made a huge mistake, I was trying to make Thunderbird view larger, now it's much to large to be functional or to make changes or go back to original settings. Here's what happened.

I went into "advanced settings" and changed layout.css.dev.Pixels.Per.Px the size is to large and now I can not view or make changes to Thunderbird. I tried deleting Thunderbird and re-installing it but no luck, the re-install has same large scale issue.

Hi, I have an existing installation of Thunderbird 91.9.1 on my linux system. I have a gmail, outlook and web.de mail each running via this installation (IMAP). My new workmail is hosted by 1&1(ionos). I can log in via web interface. Autoconfig finds the configuration that is (according to their help articles) the correct one to access the Mail via IMAP. Incoming: imap.1und1.de SSL/TLS 993 Outgoing: smtp.1und1.de STARTTLS 587 normal Password Username is my full email address. There have been no typos. I checked 5x, copy pasted, rechecked. Pasted it into the web interface login, and thunderbird before clicking go on each -> tb - no, web - yes domain is talsen.team

I would appreciate some pointers to get this fixed. And yes i did read prior questions regarding this error. It did not help in my case.

I'm trying to help an elderly friend move from Eudora OSE to Thunderbird. I found this closed thread on the forum - and I want to know 'how to back up the Eudora OSE Profile' - or any other help you can give re migrating from Eudora OSE to Thunderbird. (She has thousands of old emails.)

The tech person said,

"May I suggest, back up your OSE Profile, and give it a try.

And the other replied: "I took the tech's suggestion Backed up Euroda files and simply installed Thunderbird VOILA ! When I launched Thunderbird it simply accessed the same files and file structure (and settinge/etc) as Eudora and I didn't have to do anything ... awesome !"

I got a new pc so I copied the thunderbird file from the old pc to an usb following the instructions in this site. I copied back into the new pc (thunderbird) without creating a new account and nothing. I did it creating a new account and nothing. installed and reinstalled thunderbird and copied just the profile folder and nothing, copied just the local folder and nothing , thunderbird always open asking to set up a new account and old profile doesn't get recognized. I need help please cause I don't want to loose my saved mails. I have tried many options stated in this web siete but none of them seems to work. it is very frustrating that such a simple solution from here it doesn't work.

When I open my email, then go to my Bulk Mail folder sometimes I get a message "Server IMAP.mail Yahoo Mail.com has disconnected. Server may have gone down, or maybe a network problem. I mentioned this to a Rogers tech and he said it is not their problem - probably a software/programme problem. Any ideas?