Python script to send an email with SendGrid using a SendGrid API Key Use:

.\SG.py `
  -ApiKey "SG.xxxxxx" `
  -From you@example.com `
  -To alice@example.com,bob@example.com `
  -Subject "Hello" `
  -Text "This is a test." `
  -Cc carol@example.com `
  -Bcc dan@example.com