Thunderbird Community Forum

I set up a new Outlook.com account around a month ago. I initially had problems both receiving and sending but resolved that after enabling the IMAP option on the Outlook Web pages.

I have checked the SMTP settings and they are correct, and the connection test succeeds. Sending via the Outlook Web page works correctly.

For reference, I am using Thunderbird 153.3.1esr (64-bit) on Linux Mint.

"The certificate for pop.centurylink.net:995 is not valid for that server. Someone could be trying to impersonate the server and you should not continue."

when I set an exemption, the problem remains ???

Yes, this outlook account was made earlier this year. I've tried all of the "fixes" offered on here and across the internet. I'm changed to to password and got the app password. I've deleted 2FA to see if that would work. I've deleted the Oauth key and it refreshed to a new one. I've done it all and TB-sync is not available to me cus apparently now i'm right outside the app version limit.... how convenient. It's very frustrating as i really like the app and still use it to read my emails but it's very annoying to have to open the outlook app and go through all that just to send an email. I keep getting told it is possible, i've been battling this on and off for months. I cant just get a new email either as i already swapped everything to the outlook one and my work using out look as well. i am able to sync my calendar even but apparently just not my outgoing emails. I would like to transfer my email but the other email i have is a proton email and they are a whole other headache. Please help.

OS: Linux / Android

TB Version: 156.0

Current Outgoing Server Setup:

Server Name: smtp-mail.outlook.com Port: 587 Connection Security: STARTTLS Auth Method: OAuth2 Username: *****@outlook.com

I have the latest T-bird installed on a latest version linux Mint laptop and occasionally get puzzling errors on Yahoo mail.

Mostly it all works, but Yahoo email errors are often enough to be bothersome and I can't find any information on the rather obsure errors. Been this way through many t-bird and Linux releases.

My other email accounts don't seem to have a problem (gmail, outlook) on any t-bird instances. Just Yahoo mail on Linux Mint t-bird. Here are the errors:

"Please try later" and apparent timeouts on Yahoo mail (on t-bird, of course). This is obvious, but it doesn't happen on my Win 11 and Android T-bird programs.

Operation on yahoo "inbox" did not succeed. Yahoo mail server responded "p." (Yes, just "p.")

Operation on yahoo "inbox" did not succeed. Yahoo mail server responded "UID FETCH completed"

These errors don't seem to happen on Android t-bird or Win 11 t-bird on the same accounts, but I'm not on those for very long.

Any guidance would be appreciated.

When replying to an email or sending a new mail I get the message :- An error occurred while sending mail. Server responded : You need to authenticate when sending mail from (ip address) Please check "message Recipient" and try again. How do I authenticate ? Thanks140.7.1

Is this a known fluke. In group with more than one email I see the excerpts and can easily deal with them (delete) but if there is only one in a group I can do nothing?

I have a problem to add my mail account on Soverin.com to Thunderbird under Linux Mint. If I have created the additional e-mail in Thunderbird and I put there a right passord it is not possible to connect Soverin server.

In the last couple of days I’ve had a couple of alerts from TB when in other apps, seemingly random times, but possibly when I get an email (from memory, about Thunderbird requiring access to my Google account). I haven’t received any emails for a couple of days and I can’t send them (connection to Outgoing server smtp.gmail.com timed out). But, in TB account settings an outgoing server test was successful (Successfully established a secure connection to smtp.gmail.com:465). I also can’t pause calendar reminders, whatever I do they stay on the screen (but I can delete them with the X in the top-right corner). I haven’t changed anything in my TB or Google account settings. I’ve checked authorisations in my google account and TB auth is there. On my (android) phone, I can send and receive emails OK. OS Name: Ubuntu 24.04.4 LTS OS Build: (null) OS Type: 64-bit GNOME Version: 46 Windowing System: Wayland Kernel Version: Linux 7.0.0-30-generic

Could somebody please tell me what settings I did not make ....

I have four gmail accounts, say A, B, C and D. A is the default.

If I send a message from B to an outside email address, the reply routing is returned to the A address and not the B sending address.

If I send a message from B to C then the message is not received anywhere, it simply disappears.

If I open a browser and send a message from B to C then the message is delivered. So I know that the problem is with Thunderbird and not the email service.

Please tell me what I need to change in the settings ....

When i attempt to retrieve my email I get the following message at the top of my screen, "The certificate for POP3.pangia.biz expired of 8/13/26. How do I renew it? My email address is jahoagy@signalpeak.net. Thank you John Hoagland.

TB suddenly moves messages from inbox to trash automatically without any interaction. Search through the forrum shows that it has been asked for already, see https://support.mozilla.org/en-US/questions/1588804, similar postings can also be found with you search engine.

As described in other postings, the messages are moved from Inbox to trash. When moving them back manually from trash to inbox, they are moved to trash again immediately.

• it happens for the default account only,
• there're no filters at all in TB,
• junk detection is disabled,
• Settings->General Storage is all disabled,
• (account)->Settings->Server Settings has checked "move deleted messages to trash",
• (account)->Settings->Storage is all disabled,
• Inbox->Properties "Repair folder" does not help,
• Inbox->Properties "rules is set to "use account settings" (and greyd out "do not delete messages"),
• exactly same behaviour when starting TB in save mode,
• manually deleting all *.msf files (for inbox) does not help,
• manually deleting xulstore.json does not help,

Additional notes, which are not related to the problem, IMHO:

• IMAP on port 993,
• no other clients anywhere are connected to that account,
• TB configured for more than 10 accounts, more than 500 folders and sub-folders,
• host with > 16GB RAM, TB uses 3GB virt,
• problem observerd in older TB also, at least 13x.x

I'd be happy to debug/trace the problem if someone can give me detailled insructions how to start TB with debugging. Please feel free to ask for about:config settings as they are non-ambiguous and language independent ;-)

Thanks.

I have thunderbird installed on my PC, and my main email account is a gmail account. I download from gmail using POP protocol (SSL/TLS connection security, OAuth2 authentication). I have been using these settings for a long time (15 years?).

This afternoon, thunderbird stopped downloading my messages. No error messages : just "no new messages to download".

I can see (by logging directly into my gmail account using my browser) that there are new messages on the server. They're not spam or junk, and they're not getting downloaded into my (local) spam folder. They're not getting downloaded at all.

I still have room on the google server (it's about 87% full), and room on the hard drive on my computer (about 3 GB).

When choosing to edit a sent message as a 'new' message, placing the cursor at the beginning of the message and pressing <Enter> does not advance the text.

It used to.

Placing the cursor at any other location within the message WILL advance the text with <Enter>.

I CAN add text by typing, but the <Enter> key does nothing.

The intent of placing the cursor at the beginning of the message is to add a line to the previously sent email.

The chosen option of 'edit as new message' should work with <Enter> regardless of where the cursor is positioned.

Any chance of this being addressed?

Thanks.

I am using ThunderBird 153.0 ESR for Linux Mint mint-001 - 1.0

How can one setup a sending email server with same address and username but different passwords?

When trying to setup 2 different accounts i find a thunderbird limitation using API email password which have same smtp server address and username and only differs in password.

Is there a workaround?

Hi!

I have configured a EWS email account that requires manual configuration (I need to pass the override Office365 settings with application ID, tenand ID,...). When I select manual config I can configure the EWS server settings OK and the receiving part works OK. The problem is the outgoing server is not created OK (it is imap with password setup). I need to use the same EWS to send the email, imap is not allowed in the account. And I cannot configure the account to use EWS as the outgoing server. The outgoing server cannot be EWS and I need to setup one. So I'm in a loop.

For what I have read, thunderbird can send the email using EWS (https://support.mozilla.org/en-US/kb/thunderbird-and-exchange), but my feeling is that using manual setup (which I need to do to configure this account) breaks something internally and the outgoing is separated from the EWS receiving part. And I cannot configure back to use the internal EWS configuration in the receiving server part.

Can I do something to send emails using the same EWS configuration? What does the automatic setup to use the EWS configuration? Is there any bug for this situation?

Thanks in advance!

Thunderbird 1 of 7 working Spectrum email accounts stopped retrieving email. Tried to setup the account on new computer and it will to connect to Spectrum's mail server. Able to setup the other 6 on new install Tried under windows and Linux same problem.

I have an email account that was establish 30 years ago that suddenly stop working in Thunderbird but it is accessible through Spectrum's web server.

Spectrum wants me to verify Thunderbird is not the problem. Sounds like passing the buck to me.

I need some help with this one.