Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Suddenly unable to send emails from Thunderbird (but can receive them)

  • 2 replies
  • 1 has this problem
  • 43 views
  • Last reply by schlefer

more options

Hi --

Thunderbird was working fine. Perhaps because it updated (but I'm not sure), I suddenly became unable to send emails, though I can still receive emails. Tried changing my password, and the same problem occurred (can receive, can't send). Tried disabling Kaspersky antivirus and firewall, and the same problem occurred.

Mail provider: Microsoft outlook—outlook.office.com (provided through MIT) Antivirus/firewall software: Kaspersky Operating system: Windows 10 Thunderbird version: 78.5.1 (32-bit)

I'm attaching a screenshot of my STMP settings.

Help! Any ideas?

Thanks, Jonathan

Attached screenshots

Chosen solution

Try to start Windows in safe mode with networking enabled.

Does the problem go away?

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

Try to start Windows in safe mode with networking enabled.

Does the problem go away?

Helpful?

more options

Thanks, Christ1. I should have marked it solved earlier. For some unknown reason, without my doing anything else, in a couple of days the problem went away. Go figure. In any event, I appreciate your message. Jonathan

Helpful?

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.