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My email is driving me mad! I can receive emails no problem, but can I send them?? No. It just keeps timing out. Very annoying, I've been through every possible support forum and tried everything, I've increased the timeout time, I've checked the SMTP is all right, it is, I've deleted my account and the programme itself and reinstalled all to no avail. Very frustrating. Any help would be greatly appreciated!

"The message could not be sent because the connection to outgoing server smtp.gmail.com was lost in the middle of the transaction. Please try again."

I tried searching the FAQs and did a google search first. This did not work, all I discovered is F9 turns the contacts sidepane on and off, but doesn't fix the problem with the pane being wrong.

Until a very recent update (last week or two at most) when I hit write, the contacts pane in the write window showed my address book. Now it shows some type of search I can't use as I have to see all the entries to see which ones I want to send an email to. In some cases I have multiple entries for a person based on them having multiple email addresses for different types of email. Trying to remember which ones I want DOES NOT WORK for me. I can only get this behavior back by running in safe mode. As an alternative I need Thunderbird to save my safe mode setting so I don't have to reconfigure safe mode every time I have to reboot windows or restart Thunderbird. I currently have it coming up in safe mode by default

I tried to remove and then install an older version of Thunderbird and the bad contact pane on the left was there. I can't find any setting to change the pane from the wrong one to the old one I need. I'd rather not try reinstalling win7 pro from scratch to fix this, assuming that would fix it.

I'm running windows7 pro 64 bit

It used to be a rare occurence, but now every single time I close TB and shortly thereafter, during the same session, I try to re-launch tb I have to call up Task Mgr and kill thunderbird.exe. It is an annoyance which I would like to get rid of. Any suggestions? Thanks!

Hi there, I am getting terribly frustrated, desperately appreciate some help!

For over a week now, I can receive emails just fine, but sending fails completely. It has been working for years, but all of a sudden stopped.

Errors include (see images attached).

Have tried numerous SMTP settings and servers.

Using: Mozilla Thunderbird 52.2.1 (and later version, but rolled back to see if problem got fixed.) Windows7 Pro Avast Antivirus BT Fibre to Home

Any help be greatly appreciated. cheers, Chris

P.S. NOTE: One thing to bear in mind, this did occur at similar time of trying the BETA version on the Outlook Mail Website (But that was on a different PC). Maybe a coincidence, but thought I would mention it anyhow.

Additions: I have tried: • disabling my Antivirus. • rolling back Thunderbird several times to previous versions. • testing port allowance through router.

UPDATE - I have just installed the Outlook App on my android phone, set up my POP account, and IT WORKS both incoming and outgoing! So it looks like it's down to just my PC then.

Started sending intermittently for a few days now not sending at all, have to go to webmail to send. Have checked the settings repeatedly to no effect. OS is Linux MX-14

I have several email addresses all on my own website and all with identical setup at the server end. I just added two new ones to TB and they vanish when TB restarts. I've installed them a couple of times, they auto install perfectly, but they keep vanishing.

I've checked that all the mail servers and ports etc are the same as on the ones that work OK. So I'm assuming that the problem is some kind of generic problem with cache / profile corruption etc etc. Assuming that is the case, what kind of generic cleanup fixes should I try please?

Many thanks.

I had to reinstall the program, I can now receive emails, but I can't send them, my ISP support indicates that I need to have the "requires server authorization" option active, I can't see that option (Google translator)

TB no longer will start. It just hangs and when I go to it on my Mac I see a spinning disk. That never changes and eventually, after hours, I must force quit and report it to Apple. I receive no messages or error codes.

For some reason, thunderbird (windows 8) has essentially stopped working. Over a minute to open an email--all other functions have similar delays. I tried to archive, but I keep getting a message that says that a script has stopped working. It does the same in thunderbird safe mode. My old computer (XP) works fine. I can't find my profiles on windows 8 to rebuild the global database.

I am using 24.4 Windows 7. My online account only has one copy of each email. All my other devices with Thunderbird on them work fine. This has been happening since April 3. I use avasti. I am so tired of deleting and would appreciate help. It is discouraging that I cannot contact Mozilla Thunderbird directly.

Thanks for any suggestions Susan

I lost power to my PC when Thunderbird was running (thanks electrician who tripped the whole fusebox!). Since then despite everything I have tried Thunderbird will not open my mailbox. I get the screen 'Set Up Your Existing Email Address' shown in the screenshot. I can see my address book.

I have tried creating a new profile, copying across all the data from the profile in use until yesterday and changing the profiles.ini to point to the new profile. If I start using the profile manager (thunderbird -p) it shows the new profile but if I click it then I still get the same screen shown in the screenshot.

After looking at other support pages I tried deleting the .lock files and rebooting, still the same.

Under the troubleshooting information I can see the correct profile folder and open it, if I click about::profiles then the correct profile is in use.

It is a bit more complicated as I had the profile on a NAS drive but I have created a new profile on the PC and copied all the data in the profile directory to the local profile folder. Still the same results.

Edited: After trying a couple of other things - import into a new profile from the currant one, still same results, and changing the installs.ini file to match the profiles.ini one, also same results, I have uploaded a couple more pictures after looking again at other support questions.

I am on version 115.10.1 (32-bit)

Thanks for any help.

Dear Friends,

I can Email my wife at [elainefraser43@hotmail.co.uk] from my Gmail account:

I can Email myself [ralphfraser1@talktalk.net], which is on "Thunderbird", from her Hotmail account:

BUT, when I attempt to Email HER via "Thunderbird" my Emails are rejected, and I get the above-mentioned Unknown address error 550-"SC-002 [COLO-MC3-F42] failure message!!

This is all WELL above my head!!

Please can you explain what needs to be done here???

Regards,

Ralph Fraser

Whether I use the "reply" menu or "Reply" buttons a new email is created but there is no email address shown for the recipient. This has only started happenning after I upgraded to version 52.1.1

My environment - I am running Thunderbird 115.10.2 (64-bit), and Windows 10. - I have had NO Windows updates for at least two weeks.

The problem - About five days ago, outgoing messages (messages I was trying to send) started taking about 15 to 30 seconds before they were sent successfully.

- Today, I am unable to send messages. I can receive messages.

Actions I have taken 1. I re-installed Thunderbird after using Revo Uninstaller to uninstall it. 2. I contacted my ISP. They checked their settings, and have been unable to detect any error.

Please help!

Kenneth Govias [removed phone# from support forum] (Canada)

I run Win7. Very frequently in TB's lower left corner, it shows that messages are downloading. Recently the download time has lengthened appreciably, even when the message does not contain attachments. Also moving from one message to the other takes considerable time. Since this started three days ago, I have uninstalled any programs added in that period. MalwareBytes' scan run daily has no malware. Also have uninstalled the anti-spam on my McAfee a/v.

Any other suggestions on why this might occur?