Why Thunderbird "will not send" tells me that he needs a STARTTLS command

When I try to send a message from one of my addresses, I get the following message

"An error has occurred when sending mail. The mail server responded: 5.7.0 must issue a STARTTLS command first. Please make sure your e-mail address is correct in your mail preferences and try again. »

Go to the settings of your server, and replace security connection STARTTLS.
It seems that your provider is finally entered in our days the e-mail servers.

Tools-account-settings server settings for the incoming server.

The tools-accounts-outgoing server (SMTP) settings for the outgoing server.

No Tools menu bar? Press the ALT key .

Tags: Thunderbird

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