How to manually configure a Microslop 365 email account with Exchange on Mozilla Thunderbird

1. In the new email account wizard, type your name and email address and click Manual Configuration.

2. In the "Protocol" drop-down list, select EWS; in "Exchange endpoint URL", type https://outlook.office365.com/ews/exchange.asmx; then, adjust other settings as you want and click Continue.

Thunderbird new email account wizard incoming server settings

3. Proceed until the end of the wizard, configuring it as you want.