Microsoft Email (Outlook / Hotmail): Enable 2FA + Generate App Password (SMTP 587 STARTTLS)
Complete setup for Microsoft personal email (@outlook.com / @hotmail.com / @live.com) — enable two-step verification + generate app password + paste the app password (not your login password) into the Laifaxin password field. SMTP port is special: 587 + STARTTLS (not 465 SSL).