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SMTP suddenly stopped working

Hello, So - SMTP suddenly stopped working in our whole company. We are using Gmail accounts configured with Thunderbird for a few years already. It's all been working un… (read more)

Hello,

So - SMTP suddenly stopped working in our whole company. We are using Gmail accounts configured with Thunderbird for a few years already. It's all been working until an hour ago.

Tried deleting and adding accounts, changing authentification to google app passwords etc.\

SMTP servers do have different descriptions.

Just configured an account in outlook and it works out of the box, so I'm guessing it's got something to do with Thunderbird settings, but we didn't change anything, and especially that we have 8 PCs and it stopped working on every one of it.

The error I get when trying to send a message is:

"Sending message failed. The message failed to send because it failed to connect to the outgoing mail (SMTP) server "smtp.gmail.com". The server may be unreachable or not accepting SMTP connections. Please verify that your outgoing mail server settings are correct and then try again or contact your server administrator."

(translated from polish).

Best regards.

Asked by Mateusz Makar 3 weeks ago

Last reply by Googlethunderbird 2 weeks ago

Google Account security/sign in changes September 2024

Dear Sir/Madam, I use the Thunderbird email client on my Microsoft Windows 10 desktop tower PC in order to access my Gmail account using POP3, using "only" my email addr… (read more)

Dear Sir/Madam,

I use the Thunderbird email client on my Microsoft Windows 10 desktop tower PC in order to access my Gmail account using POP3, using "only" my email address and password.

However, I note that Google plan to introduce more stringent and tighter sign in/authentication methods from September 2024 as follows:

https://support.google.com/a/answer/6260879?hl=en

https://support.google.com/a/answer/6260879?hl=en

Does Thunderbird have a workaround for Google's plans please?

Thanking you.

Asked by PAUL F 3 weeks ago

Last reply by christ1 3 weeks ago

I get a security error when I launch Thunderbird and also sending mail

When I launch Thunderbird I get the following message: Secure connection failed live.mozillamessaging.com uses an invalid security certificate. The certificate is not … (read more)

When I launch Thunderbird I get the following message:

Secure connection failed

live.mozillamessaging.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate has expired. Error code: <a id="errorCode" title="SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE">SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE</a>

This could be a problem with the server's configuration, or it could be someone trying to impersonate the server. If you have connected to this server successfully in the past, the error may be temporary, and you can try again later.

Or you can add an exception

AND Thunderbird then automatically downloads emails without asking me for a password. I have just migrated to a new desktop computer (MSI CUBI 5) and this started immediately.

When I try to send email I get a message telling me my outgoing server does not have a certificate, but this doesn't appear to be Thunderbird's problem?

I'm not happy about any of this? Can you advise me please where I should be directing my request for help? It doesn't seem like it should be a Thunderbird issue, but the address includes the word mozilla so I am sending it to you...

Thanks for any help you can offer, I really like (and support) your software. Margaret

Asked by m.mackisack 4 weeks ago

Missing emails!

I have not been receiving replies to adds I have on Gumtree, to my primary email address, denisj51@msn.com. Gumtree has advised me that my email client, which is Thunder… (read more)

I have not been receiving replies to adds I have on Gumtree, to my primary email address, denisj51@msn.com. Gumtree has advised me that my email client, which is Thunderbird, is identifying them as Spam, and is deleting them! I check the junk folder of that account regularly, and they are not sent to that folder. I would like to stop them being deleted. How do I do that ? Thanks for your help. Denis.

Asked by JAPANESE SHOJI SCREENS. 3 weeks ago

Last reply by JAPANESE SHOJI SCREENS. 3 weeks ago

Unable to send New Message

Hi, I am facing an issue with Thunderbird. I integrated my email address but there problem is the new message is giving "Undelivered Mail Returned to Sender" but I can … (read more)

Hi,

I am facing an issue with Thunderbird.

I integrated my email address but there problem is the new message is giving "Undelivered Mail Returned to Sender" but I can reply and receive the emails.

Please guide me about it.

Many Thanks

Asked by Adeel Khan 1 month ago

Last reply by david 1 month ago

Changed spam behaviour

Some mails always end in spam folder no matter which settings I have tried for example collected adresses or check/uncheck spam settings. For a test I have two hotmail ac… (read more)

Some mails always end in spam folder no matter which settings I have tried for example collected adresses or check/uncheck spam settings. For a test I have two hotmail accounts. When I from thunderbird send mail from one to the other, it ends in spamfolder. But if I from the same mail account from outlook.live website send mail to the same account, it doesn't end in Thunderbird spam folder. Besides this many other safe and regocnized mailaccounts recently starts to end in spamfolder. Can any thing be done?

Asked by Henrik Meinertz 1 month ago

Can't receive from a specific emal addr

Hello: I can't seem to receive emails from a specific address from a professional office (with their own URL), which I have never (not knowingly) ever classified as JUNK,… (read more)

Hello: I can't seem to receive emails from a specific address from a professional office (with their own URL), which I have never (not knowingly) ever classified as JUNK, ... I have checked my Junk box, Deleted Box, and my filters from __@Bell.net, from which I download to T-Bird. That email addr or URL is NOT blocked, and I have put that addr on my "SafeSenders" List.

I don't see that email anywhere else in T-Bird Folders,, and the sender had to call me, and resend from a diff address, their own Gmail acct.!

And I can send to them, to few ppl in that office,... And I don't get any emails from anyone @the URL, meaning no other staff from that URL can send anything to me!

Did I accidentally classify it as JUNK, but I never received anything from the beginning,.. So I do NOT believe I would have set it as Junk...

I have checked ALL settings in T-Bird and at __Bell.Net in my settings, but to no avail.

Pls help, Much appreciated, Az

Asked by AzeemH 3 weeks ago

Last reply by Matt 3 weeks ago

  • Solved

Remote content abruptly enabled for just one email message

I've encountered one message in Thunderbird that has remote content enabled (which I don't recall explicitly enabling). In Settings, under "Allow remote content in messa… (read more)

I've encountered one message in Thunderbird that has remote content enabled (which I don't recall explicitly enabling). In Settings, under "Allow remote content in messages" (unchecked), the "Exceptions..." list is empty. I've also cleared the cache, switched to offline mode, and went back to that message, but it still shows remote content.

Asked by 7rh8tjqn9b 4 weeks ago

Answered by Matt 4 weeks ago

Outlook Login

Hi, I´ve some Outlook accounts with two step verification login. Anytime I open Thunderbird I´ve to verify myself by selecting a number on my mobile. Is it possible that … (read more)

Hi, I´ve some Outlook accounts with two step verification login. Anytime I open Thunderbird I´ve to verify myself by selecting a number on my mobile. Is it possible that Thunderbird get´s directly to my outlook account without that veryfying process? Thanks for answering.

Asked by ilsamu 1 month ago

Browser no longer asking for primary password

This started a few weeks ago. I thought it might have been because I synced the passwords with other devices. I reverted it back. When in about:logins, I click on the l… (read more)

This started a few weeks ago. I thought it might have been because I synced the passwords with other devices. I reverted it back.

When in about:logins, I click on the log in button but nothing happens.

Asked by l s p 2 months ago

Last reply by cor-el 2 months ago

Links not clickable

I have an email conversation that's gone back and forth many times, with the other party including useful links for me. I noticed today that links are only live (blue, cl… (read more)

I have an email conversation that's gone back and forth many times, with the other party including useful links for me. I noticed today that links are only live (blue, clickable) in the most recent email, if I scroll down to past emails in the chain, all links are plain text and not clickable. How can I make them all clickable please?

Asked by mozilla516 2 months ago

Trying to update email address

Am trying to update my email address. When I try to make the secondary the primary, it wants a verification code entered. The field for this code will not let me paste it… (read more)

Am trying to update my email address. When I try to make the secondary the primary, it wants a verification code entered. The field for this code will not let me paste it or enter it manually. Will this glitch be fixed soon?

Asked by Carmen 2 months ago

Sign in to google workspace account with external 2FA

Hi! I would like to use Thunderbird with an email account provided by my university. It uses the gmail web client and is provided through google workspace (I believe). Th… (read more)

Hi! I would like to use Thunderbird with an email account provided by my university. It uses the gmail web client and is provided through google workspace (I believe). The login process involves a redirect to the campus authentication page, with a DUO 2FA ping. Is there a way to add this account to Thunderbird? Programs like Gnome Online Accounts allow me to add this as a google account and then follow the usual process in a web browser window. However, when I try this on Thunderbird, I get as far as granting access through Google's system, but then the system exits with "Unable to log in at server. Probably wrong configuration, username or password." Is there a way to set this up correctly? It looks like it almost works.

Asked by benogoldman 1 month ago

Last reply by Matt 1 month ago

TB warning

I have been using TB for a long time, currently 115.11.1 (64-bit) Out of the blue I have started to get on loading up TB: Warning: Potential Security Risk Ahead Thunde… (read more)

I have been using TB for a long time, currently 115.11.1 (64-bit)

Out of the blue I have started to get on loading up TB: Warning: Potential Security Risk Ahead

Thunderbird detected a potential security threat and did not continue to live.thunderbird.net. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

Can you please advise?

Thanks

Asked by bhague 1 month ago

Last reply by david 1 month ago