Replace Send-MailMessage in PowerShell — It's Deprecated

Microsoft deprecated Send-MailMessage in PowerShell. The official docs now say "This cmdlet does not guarantee secure connections to SMTP servers" and recommend against using it. But thousands of production scripts still depend on it for alerts, reports, and automation. The replacement options aren't great. Send-MgUserMessage requires Microsoft Graph SDK setup and Azure AD app registration. Raw System.Net.Mail.SmtpClient is also deprecated. Building OAuth2 token flows from scratch takes hours. Nylas CLI gives you a one-line replacement that handles OAuth automatically for Gmail, Outlook, Exchange, Yahoo, iCloud, and IMAP. No SMTP config, no app passwords, no token refresh logic. Before and after Send-MailMessage (deprecated) # Old way — deprecated, insecure, requires SMTP config Send-MailMessage ` -From "[email protected]" ` -To "[email protected]" ` -Subject "Daily Report" ` -Body "See attached." ` -Attachments "report.csv" ` -SmtpServer "smtp.office365.com" ` -Port 587 ` -UseSsl ` -Cred