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Thunderbird not sending emails.

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  • Last reply by sfhowes

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I'm currently on version 91.3.1 of Thunderbird and for over a month I have not been able to send emails. I have had several updates to Thunderbird since the problem began but the problem has persisted. My Outgoing Server (SMTP) settings are:

Description: Microsoft Live Hotmail Server Name: smtp.office365.com Port: 587 User Name: "My correct Outlook email address" Authentication Method: Normal password Connection Security: STARTTLS

Can anyone help me resolve this issue?

I'm currently on version 91.3.1 of Thunderbird and for over a month I have not been able to send emails. I have had several updates to Thunderbird since the problem began but the problem has persisted. My Outgoing Server (SMTP) settings are: Description: Microsoft Live Hotmail Server Name: smtp.office365.com Port: 587 User Name: "My correct Outlook email address" Authentication Method: Normal password Connection Security: STARTTLS Can anyone help me resolve this issue?

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The settings are correct, and my Hotmail account sends with no problems. What is the antivirus and its settings for email? Are you using a VPN? Two-step verification on the account?