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The last email I received from any ISP through Thunderbird 78.5.0 was on 11/27/2020. If I fire up Outlook, I get all the mail I missed over the past 3 days. I've tried resetting the security.tls.version.min value to 1, per this article https://support.mozilla.org/en-US/kb/thunderbird-78-faq#w_how-to-enable-outdated-security-protocols-tls-1-0-and-1-1 and that hasn't helped.

So, I know that my 3 different ISPs are not all having trouble (since Outlook receives my test emails and old email that were sent during the Thunderbird "outage", and my phone received the missing emails).

It doesn't appear to have anything to do with the TLS version, as setting it to 1 has no effect.

I know the date this occurred was 11/27/2020.

I've rebooted the computer and restarted Thunderbird multiple times.

I've tried STARTTLS (which Thunderbird defaulted to) and SSL/TLS (which my ISPs all give as their correct server settings) and nothing makes any difference.

The status bar at the end shows "Checking mail server capabilities..." and never progresses any further.

What else can I try?

Long time thunderbird user. 78.5.0 has been functioning on up to date windows 10 laptop up until this morning. It will not retrieve any new mail. No error messages.

Tried reboot. Tried uninstall/reinstall. No change.

Thunderbird 68.12.0 on a windows 7 desktop on the same home network is working fine. Not sure what else to try here. Any thoughts?

Last night, everything was working OK. This morning Thunderbird would not connect to the email server. It now hangs on "connected to imap.ionos.co.uk". ISP says they have not changed anything. I am using their suggested settings STARTTLS and SSL/TLS and suggested ports. As Thunderbird says it is connected, it seems to be a problem the ISP end. They blame Thunderbird. I have tried turning down the security to use outdated security protocols TLS 1.0 and 1.1 using the config editor but, with the ISPs suggested settings, it still does not work. Changing the security in Thunderbird to NONE allows Thunderbird to download and send emails.

Any suggestions please?

When I logged in this morning, I didn't receive new messages. When I sent a message as a test, it said that while the message was sent, it would not be saved. Something happened happened overnight, because it was fine when I logged off.

Since updating to V78.5 I can not receive nor send emails. I change the Security setting in the config editor as suggested but this did not help. My gmail settings have not changed and I'm about to delete TB and just use the web site. I did not know I had automatic upgrade on and don't know where to look for it. I'm not a geek but I'm also not a novice and I feel pretty stupid that I cant figure this out. Anyone else have the same difficulties?

I have reset security.tls.min=1 still no emails! (I can get the emails on my phone). I can send emails from Tbird.

It seems that the last update was on 20 th November 2020. Maybe I can load the previous version ?

Good morning everyone,

I can see that this is a common issue but I have been through all the previous posts and have tried all the fixes to no avail.

I have numerous gmails successfully linked to MT but for no obvious reason, the most important one, stopped receiving emails yesterday afternoon. I removed the account and tried adding it again, but am now receiving the 'Unable to log in at server' error message. I have carried out the following:

1) I have double checked that 'Third-party access to GMail' is enabled in my Google Account 2) I have removed all record of passwords linked to the email in question in MT 'Saved Passwords' 3) Authentication is set as OAuth2 on both Incoming and Outgoing

I would be so grateful if someone can give me some advice. It's typical it's always the most important email address that has the problem!

Hi there.

I've been using Thunderbird for quite a while, no real problems. My machine runs Windows 10.

Last night I used it, no issues. Went to bed.

Woke up this morning, loaded it up and now it's stuck on the bottom left of the application window:

nameofemailaccount@gmail.com: Connected to pop.gmail.com...

I double click on that line which brings up the Activity Manager pop up, and it's blank.

I've checked windows update, installed the most recent updates. Rebooted the computer. I still have the same issue. No emails are being downloaded locally.

I've logged into GMail's web interface and I can see emails there waiting in my inbox to be downloaded.

I've also tried sending out a test email and it gets sent out with no issues.

What should I attempt next? Would appreciate some advice.

Hello All,

since yesterday evening Thunderbird 78.5 stopped synchronizing IMAP folders.

I have 26 accounts setup in Thunderbird from 4 different providers so it is not a settings issue.

Tried repairing a folder but with no luck. It remains empty with no error popping up at any time.

Tried starting Thunderbird with no add-ons but with no result.

Could you advise on further steps I can take?

Hello, I use Thunderbird (since years) version 78.5.0 under Windows 10. This morning all was ok, but this afternoon it refuses to collect my mail. I searched for the problem in help for Thunderbird and found a solution : in the pop email server setup I changed the security of the connection to None (it was SSL/TLS). And it works. My question is : do I now have a security problem ? Thanks.

Hi folks!

I have been using Thunderbird for many many years, and never had this problem before.

Today between 11am and 12pm it stopped receiving new emails. I didn't do any software installations or things like that. I only restarted my internet router, but I have done that many times before.

Now my Thunderbird only quickly pretends to check for new emails from all of my 17 email accounts, but it doesn't do that, doesn't fetch any emails either. And when I force it for a specific account I see "[my email address]: Connected to pop.gmail.com" on the status bar below. That message will stay there forever, without any emails being fetched. I checked my gmail accounts on the web and they do receive emails as usual.

No error messages or warnings of any kind.

And yes I am online, not in offline mode.

This is very frustrating because I can't go and manually check all of my 17 accounts all the time.

Thunderbird 78.5.0, Windows 10 Enterprise x64.

Hi all., can you please help.

- I cant receive emails ( no new emails in my mailbox ) - I "see" sent emails - but people reported that they receive email from me.

As an emergency I am using Roundcube Webmail 1.3.11 web email now, works fine. My hosting and provider of email address is reporting no problems at all.

Sending you screenshot of what is happening on my screen. I did reinstall Thunderbird, no result.

Can please somebody help ?

HDD space, computer power ok Windows 10 2019 x64 Thunderbird v. 78.5.0 (32-bit) Using ESET NOD32 v14.0.22 as antivirus system and security

I'd be very grateful for any help you can give me with the following issues.

I installed Thunderbird version 78.5.0 on 13 November. As of yesterday, I have the following problems:

1. A continuously spinning circle appears in my inbox as though it's hanging. This does not happen in any of the other folders (eg Sent Mail, All Mail). 2. Incoming emails are not appearing in my inbox. I can get them in GMail. 2. When I send an email I get the following error message: "Your message was sent but a copy was not placed in your sent folder (Sent Mail) due to network or file access errors. You can retry or save the message locally to Local Folders/Sent Mail-xxx." Sent emails do reach the addressees.

Other information which may be relevant: 1. I run Windows 10 Home 64-bit version 1909 2. My security software is ESET Internet Security version 14.0.22.0

Looking forward to hearing from you.

Hi, Suddenly Thunderbird stopped retrieving emails. I tried all the solutions mentiond in the forum, still doesn't work. I do not understand what to do, who to ask. Could someone let me know if someone is working on a sollution?

Thanx,

-- Camilo

Of the 3 accounts I have configured in Thunderbird, only the POP account is still functioning. The other 2 are IMAP accounts and are not working. One of these, a Hotmail account, has "Connected to imap-mail.outlook.com..." in the status bar, yet no messages are retrieved from the server (yes, there are unread messages there). Further, after trying to fix it by using the "Repair Folder" utility for the Inbox, it is still not working and the Inbox is now empty and the corresponding local folder is missing. The other IMAP account shows "Checking mail server capabilities..." in the status bar and never changes nor retrieves existing unread mail on the server. An upgrade to version 78.5.0 did not resolve the problem. No other updates have been applied to the OS, (Windows 10) or any other applications.

Any recommendations would be appreciated.

I've been using Thunderbird for over 10 years and suddenly yesterday after an update to 78.5.0 it stopped receiving emails. It also started to raise an error when I send an email "Your message was sent but a copy was not placed in your sent folder (Sent Mail) due to a network or file access errors."

When I select "Get all new messages", there is no response, no status message at the bottom of the window and no errors or other response.

I have rebooted and reinstalled Thunderbird - still no joy.

I have ESET Nod32 Antivirus and email still fails if I turn email scanning off.

I have several gmail accounts. They have worked for years. What changed?

Thunderbird 68.12.1 is working fine with these email accounts on a second computer I have.

Thank you, Mike

Thunderbird 78 on Windows 10 not receiving incoming emails from Xfinity last three days; also outgoing mail is sent but not saved to Sent Folder.

Has anyone else had this problem recently? What have you done to fix this, or do you think the problem is with Xfinity?