Thunderbird Community Forum

Since we upgraded to 115, most of our PC cannot forward email larger than 5MB to team members. One or two PC can sometimes send without problem but not always.

We can press "forward" and the compose new email window comes up as it has always been. But when we press "send", it will stall for a while then responded "Cannot send email". Press "OK" and sometimes it will then respond "Creating email" or something like that. The sequence could be reversed (create first then cannot send). Cannot even save as Draft into the Draft folder on our own manged MDaemon mail server on our local LAN.

Thinking it is all due to the forwarded email being too big, tried many many times over weeks checking MD setting, LAN and individual local PC setting but still cannot resolve.

Today I tried something completely different. Instead of "forwarding one large email", I tried to attach large attachments like .jpg etc and found that it is the "attachment process" that is causing the problem. If I attach a larger file, say 10MB, it is problem. If I attach several small files, it sometimes go through even the total file size exceed 10MB. The I tried attaching just a few attachments, save to draft folder, close the compose window, re-select the draft email and then add more file. Repeating this several times I managed to be able to save to draft folder on the server and then send out an email of 49.9MB. I keep on playing with it for hours but I could repeat and can only managed to do something like 10MB/11MB.

This is still much better than trying to "forward an email" (as attachment or in-line) which we can only do up to about 5MB max.

Please help to resole this problem.

This evening, Thunderbird has updated to the new version (can't see where the version number is held, unfortunately). Whenever I try to download new emails, I now get the message "Error with account [email address]. Sending of username did not succeed. Mail server pop3.iomartcloud.com responded: Mate, the command must be one of CAPA, USER, PASS or QUIT." Mails are still accessible through the mail client on my phone and through webmail, just not through Thunderbird.

Thunderbird 128.0.1 Nebula just updated. Now it freezes up when I try to open an account's Inbox. The main interface page shows messages in an account but when I go to the account and click on the inbox Thunderbird freezes up! I never had this problem with the previous version. I have multiple accounts with multiple services and it hangs/freezes on every single one. Sometims if I let it sit for several seconds, it will open. Other times I have to close Thunderbird and re-open it to check the inbox.

Is there any way possible to revert back to the previous version? This is horrible! I absolutely HATE it!

Im trying to put my email (prkirby@sky.com) on to thunderbird (version 115.12.1 64Bit) running on a windows 11 computer I have 2 other emails which run perfectly All my settings are correct, pop 3 incoming pop.tools.sky.com port 995 outgoing smpt.tools.sky.com port 465 both my username and password are correct, all these settings work when using outlook 2013 pro plus on a computer running windows 7 username and password also work when signing in to emails on different computers When I create the account the message I get is password/usename incorrect Any help will be gratefully received Phil

When using TB today I got messages that there wasn't enough disk space. So I compacted all folders (I may have tried a repair too, I can't remember now). Next thing I find my inbox is empty, all messages gone. In Local Folders the Inbox file is 0 bytes and Inbox.msf is 2kB.

I have a backup of the entire disk but what files should I pull over from the backup to restore my inbox? I tried bringing those 2 files, an Inbox file of 1.9MB and Inbox.msf of 5kB but when I start TB again there are still no messages in inbox. A compact returns Inbox to 0 bytes.

Since trying this new messages have appeared in inbox so I've moved them to another folder.

Maybe I need to restore other files too but what? I don't want to restore the entire profile as I made changes and moved messages around before the errors popped up. So what files comprise Inbox. There are other Inbox files in various folders relating to my various mail accounts but the only ones dated today are in a folder called Mail\smart mailboxes - I tried restoring those too but still no luck.

Any ideas?

Thanks, Dave

Have no clue what I am doing. I have downloaded Thunderbird so I can access my bt internet emails (webmail is having issues)and have fallen at the first hurdle! I need someone to put in easy words what I am to do please. I have inputted my email address and password and it says unable to log in at server.

Hi all, I am a long time Thunderbird user on all my Windows machines. Today I installed Thunderbird 128.0.1esr (64bit) on fresh Win11 machine. I successfully added my gmail account to Thunderbird. I have issue with my other account - the SSL cert is issued not for this specific domain and I get warning about this but I can't accept this as exception - it appears again right after clicking "accept exception". I know this is about SSL cert but I want to accept this exception.

On another Win machine I had configured both accounts for ages - it stopped to connect to this server right after upgrading to 128.0.1esr.

Disabling SSL scanning in ESET or disabling protection at all is not helping. When I change configuration from "STARTSSL" to "NONE" it then connects to the server. The issue is with accepting exception in Thunderbird. Do you have any suggestions?

Kind regards Daniel

I use thunderbird on two desktop computers that are linked via google. Last year or maybe year before I started getting a duplicate email problem. If I send an email from one of the 5 email addresses that I use the email is sent to the intended recipient but, it is also sent to the inbox on the other computer. This week because I was having a signing in problem I have reinstalled mozilla thunderbird on both computers and also deleted the email addresses and re-created the accounts for them. The sign in problem seems to have been cured but not the duplicate problem. Anyone have any ideas about this? Andy

Is it possible to download Thunderbird onto an older windows 7 computer to collect my emails from a server where they still exist? (It is going to shut down soon.! ) I am currently using Outlook 2016 & POP and need to upgrade to a new PC and wish to take all my emails going back to 2018, when I go to it, In a form that I can read.! I understand taking emails to a new PC is fairly easy with Thunderbird which is why I want to come to you.

After I have downloaded all my old emails from old server using POP, Can I change Thunderbird to receive from the new server which is IMAP .? and can this change be made seamlessly within the Thunderbird programe so as to then continue receiving mails as normal? Please confirm this is all possible

Hi This is not the first time I am getting this issue. I have among many email accounts from diverse providers 2 Outlook & 1 Hotmail email accounts. For some reason, in the last 2 weeks, Thunderbird stopped automatically logging in, although I have not changed log-in data for any of them. If I try to sign in the provided Thunderbird log in box, it rejects the log in. Even stranger, after running Thunderbird in the background in the last 2 hours, like today, SUDDENLY & without warning, I get alerts of new mail in the Hotmail account. This also happens for the Outlook accounts, which show new mail having come in yesterday and the other day, although as of now, unlike Hotmail, the other 2 have not subsequently logged in yet. I can log in via Firefox into those accounts, but Thunderbird will not, at least at the start of Thunderbird, but at a time later I have no control of? What is this strange behavior affecting only Hotmail & Outlook and how can it be permanently corrected?

Thank you in advance

I suggest you stop recommending Mailfence. I have had some issues recently with my emails and presume it is to do with various updates, but the Mailfence account which i was going to close at the end of the term, remains blocked and i can't recover anything from them. Thb stated it was free when i subscribed, only it wasn't free for Thb platform users. They are not a fit company

128.0.1esr (64-bit) portable in w10 Windows 10 Enterprise 22H2 latest update as of 6th Aug 2024

Since I have updated to 128.0.1esr (64-bit) portable

I have been experiencing unusual and extremely slow rss feed and other email check & downloads

I have 3 gmail accounts & 1 microsoft and many rss feeds

unless I click on update/get messages for each gmail or microsoft or spesific rss feeds it just hangs

whereas when I click update/get all at once in the previous edition

I have never had such slowness or problem

I don't believe you need further info

please fix the slowness / and or not getting the new messages at all

On Windows 10 after update from TB 115 to 128esr it started work very slow. I've did folder repairment and after that content of folder for past half year or a bit more disappeared. I was looking for many solutions for this but some of them didn't work or were not available.

I like to have all folders displayed - also if they are not 'subscribed'. The reason is that we have shared e-mail accounts and colleagues may create folders which I will not see until I know that I have to subscribe to the new folder. Every time I recognize this I do a Google search to find the checkbox 'Show only subscribed folders' and uncheck it. Would it be possible to put that in a more prominent place than 'Advanced...'? Or even better a global setting that all new accounts I connec inherit the setting "'Show only subscribed folders' unchecked".

Good day

yesterday I had an issue with my new emails from 1st August to 5th August, they were not displaying correctly, so I did a repair folder to my inbox, once I did this and said OK all my current emails until May 2022 disappeared! Some emails received yesterday 5th August 2024 will not open and have lost their attachments. This only happened in my inbox... Why has this happened and please can someone help me get all these emails back.

Kind regards

Bonnie Braes