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Why is Thunderbird consatntly coming up with "Authentification failure while trying to connect to server outlook.office365.com"? It never used to and would download my hotmail emails perfectly until about a month ago. This is very frustrating, I have removed my hotmail account from thunderbird and re installed it, works for ocassionally the back to same old message authentification failure. What is going on with thunderbird?153.02

I have version 153.02esr. Since two days ago I cannot reply or forward messages. It pulls up the appropriate page but there is no box to send, the space is just blank in the upper left hand corner.

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).

Seems like soon as a batch of emails download they all open up immediately or at least as soon as I open or delete one they all open. Never had this happening until just late this week.

I have emailed 7th August to what appears on my mobile from Thunderbird settings just a review address. I explained that I have not received in Thunderbird any emails from my BT email system since Monday 22 July which happens to be the date shown on my mobile phone as the last date for your update. I can send emails via Thunderbird but not receive messages. The email address I use is john.morris@deritter.org.uk which goes to john.m280@btinternet.com I am sending this message from my laptop as it is easier to write that way and I stand a better chance of getting a reply than on my mobile Thunderbird.

Could you please let be know if your settings update on 22July caused the problem or what else needs putting right.

Another question. BT have a Spam folder to which many important emails are directed. These are not collected by Thunderbird which does not have a Spam folder. This means that if verifying codes are sent to my email address I can't recover them.

I am otherwise very pleased with Thunderbird and would just like these points investigated. Kind regards John Morris

My Send short cut has disappeared.. I also have the "send later" add on to my Thunderbird. I seem unable to send messages. Is there a key board short cut to for sending mail? My old Eudora account used to have one a <Ctl> S.... (With Thunderbird this is Save, instead of send).

And worse yet, every 10-15 seconds I receive an alert that the connection has timed out. About a year-ish or so ago, our internet provider (Cox) sold our email service to yahoo. Although I managed to get all of the accounts (cox allowed our household 5) entered so that they all *received* mail, only one was able to send mail. The other four could only receive. Also, I could not send mail from either my google/gmail address or my very ancient yahoomail address. But all could at least receive mails. All in thunderbird, Excellent. As of yesterday, only one (a previous cox address) can receive or send mail. I tried sending a test mail to all of the other addresses, and no joy. If I get onto the yahoo main site, I can sign in with password and then must receive a text, phone call or other verification. And, of course, sign out of each, then sign into another, lather, rinse, repeat. Apparently I can also use a "passkey" which appears to be an actual "thing" that I have to plug into a USB port. I don't have one of these and have no idea what it is or how to get one. Since I've been composing this request, I've gotten 6 pop-up notices that the thunderbird server to yahoo has "timed out" - this is pretty annoying! And, there's another one! I am open to suggestions! Thunderbird has been great for getting all the emails in one place. Now, not so much. Help me!

Incoming mail on my windows 11 computer has begun appearing in the Sent folder instead of the Inbox. It appears to have started 7/26/26. When I right click on the message I see an option to "move to inbox again".

  This does not happen on my Macbook.

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

I changed my password for Greenby/Plusnet today. Now Thunderbird is unable to connect to them. The password is correct as I can enter website directly. No problems before change. Grateful for help.

Should I reinstall?

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?

For whatever reason after the lastest Thunderbird update Windstream is refusing the connection to Thunderbird email client. I have gone through all of the delete .msf files for all of the inboxes tried adjusting server settings to no avail on anything.

Somehow I got 2 emails: gregory@gregorysantana.com and Gregory@GregorySantana.com The lower case shows a lock blue envelope and the upper case shows a lock red envelope. I don't understand the icon meaning of the lock icon and the color coding.

Further: I use command File, sub menu Get New Messages for All Accounts.

In the lower part of the overall panel, I see new messages downloading, but the new messages don't show up in either account.

How to correct, it is important.

I succeeded in the Thunderbird transfer method described in these forums when bunging it on an old Win10 laptop. When I come to try the same on a new Win11 PC however, setting up an existing email address simply fails. I get as far, in the Set Up Your Existing Email Address page as "Configuration found at email provider" but can proceed no further as I get the message "Unable to log in at server. Probably wrong configuration, username or password" The setup on my old PC is gone now, it finally gave up the ghost, I have email on the old Win10 laptop but that's far from ideal. Additional facts: it's an ntlworld email address; there's a possibility the password may be redundant (so many of these to be found when a PC is on its last legs) How do I get it onto this Win11 PC?

I have a large number of filters, and an important email was processed to move message into a folder. but the filter had no rule that would apply to the message. all the filter criteria were based on the sender, but that email did not have that sender. the filter log shows the filter being applied anyway. I suspect the filter database is corrupted. How can I fix that? i noticed my version is slightly out of date, and I will update it, but I dont expect that would fix a corrupted filter database .