bloop.email
IMAP settings

Outlook.com IMAP and SMTP settings

The server settings to add Outlook.com to any mail app, for addresses ending in @outlook.com, @hotmail.com or @live.com.

Outlook.com only accepts OAuth2 (Modern Auth) sign-in. A mail app that only sends a username and password cannot connect.

Incoming mail (IMAP)
Serveroutlook.office365.com
Port993
SecuritySSL/TLS
Outgoing mail (SMTP)
Serversmtp-mail.outlook.com
Port587
SecuritySTARTTLS
Sign-in
UsernameYour full Outlook.com email address
PasswordSign in with Microsoft (OAuth2); a typed password is not accepted.

From Microsoft Support: POP, IMAP, and SMTP settings for Outlook.com. Check there if something has changed.

Before you start

Use Outlook.com in a native Mac app

Bloop.email signs in to Microsoft accounts on Microsoft's own page, so you won't need to type these settings at all. See how to add it.