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I cannot send from an Office365 account but can get mail - it simply says 'sending' but nothing happens.

I am using Owl (paid subscription) for my Office365 account.

I also have another email that is a simple IMAP account and that works beautifully!

For some reason, Thunderbird is prematurely word wrapping (or inserting line breaks) on emails that are sent.

I'm using default 'HTML Style' Defaults, but have also messed around with those to see if I can fix the issue - to no avail.

I found an old 'question' on the support site where this seemed to have been resolved (https://support.mozilla.org/en-US/questions/1307490). Unfortunately, the Solution doesn't appear to apply to modern Thunderbird versions (e.g., version 148); I can't find the suggested setting to change.

As of today, I am unable to link to, or log onto, my email server - gmx.com..... Have never had a problem until today.

Today, when I opened up Thunderbird, ALL my email accounts came back with an error message stating that the login to the server failed (see attachment). I don't know what happened.

I checked all of my settings, and they are all correct (according to GMX), I tried to re-enter my passwords, and even re-booted my computer in the off chance that there may have been a booting issue. Nothing helped.

Can someone tell me what's going on? Why is Thunderbird all of a sudden not linking with the email servers? How do we fix this when all of the protocols are correct - and have been all along? Any thoughts, suggestions, or advice?

Thank you....

On more than one occasion I get the following message after sending an email. I'm told that a copy of my outgoing email has not been saved in the sent box:

"access errors. You can retry or save the message locally to Local Folders/Sent-aidan@clockwork1.plus.com."

Is there any way that I can overcome this issue and have a copy saved automatically, please?

I receive the following error message: Not enough disk space to download new messages. Try deleting old mail, emptying the Trash, and compacting your mail folders and then try again.

I get the message when I want to download new emails. The suggestions to fix the problem DO NOT WORK. I cannot compact, the Trash is empty and I know there is GB's of space on my C: drive, which contains all Windows software. What to do?

j'ai ajouté à thunderbird mon compte de messagerie infomaniak . l'intégration s'est faite correctement, mais je ne peux pas envoyer de mail à partir de thunderbird infomaniak sauf si je remplace le serveur sortant mail.infomaniak.com par smtp.gmail.com. quelqu'un sait ce qu'il se passe?

I can send but not received emails from my several accounts. I know there's email on some, as I can see and read them with Mailwasher.

I have noticed previous posts here with the same problem, but I haven't seen a viable solution. (I'm on a new computer since last week.)

I am having trouble sending in email, i have gmail server (i am getting a time out error) i have the latest version of thunderbird i am receiving message ok, just cant send

Thunderbird has been working OK. Now, despite PC restarts and so on I get the message "mail couldn't be sent, time out error for SMTP server. I have tried changing the SMTP settings from port 465 to port 587 but no difference. If I log in to my email provider (vodafon/uniymail) I can send mails no problem. The problem is with thunderbird not sending smtp. Tried turning firewall and antivirus off, no help. Internet connection is glassfibre, internet works OK.

Error msg:

Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) outbound failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again.

Attached screen shot.

When I send an email from my account dezandcathy@optusnet.com.au, I receive a 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-dezandcathy@optusnet.com.au" This problem has only occurred within the past week. For some of my sent emails, I have retried sending the message and it has appeared in my sent email folder, but not for all the emails I have retried. Checking with the recipients, they confirm receipt of my emails even though they are not shown in my sent email file. Can you suggest a solution? Thank you Derek Maule

When setup the SMTP server, under the security and Authenication; only "User Name" is provided, but there is no "Password" field provided for input, please resolve this problem.

I have several subscribed IMAP folders. I have a schedule set to check them every hour. But only the Inbox folder is checked. All other folders are checked only if I access them myself. Help me pls.

I have smtp.gmail.com set up as my outgoing server (port 465, username = my gmail address, Authentication = OAuth2, connection security = SSL/TLS, also tried STARTTLS with port 587). There doesn't appear to be any way to set the password in the "Outgoing Server (SMTP) Settings", even when I click "Edit". Nor can I add a password to the "Edit/Privacy&Security/Saved Passwords" dialog box (which allows you to see existing passwords or remove them, but not add any).

When I try to send an email, the "Sending Message" dialog box pops up, and after a few seconds a second box pops labeled "Login to account 'smtp.gmai.com' failed". This box has three buttons: "Enter New Password", Cancel and Retry. Clicking on the "Enter New Password" button does not offer me the chance to enter a new password--instead, it immediately takes me back to the "Sending Message" box, which then immediately takes me back to the "Login...failed" box. There is never an opportunity to enter the password!

TBird 140.7.0esr, Thunderbird for Linux Mint. Mint version 22.3.

Sending works ok if I choose a different SMTP server.