Send a targeted email campaign through a connected SendGrid, Klaviyo, Customer.io, Brevo, or Mailchimp MCP — subject-line and spam scoring, personalization with fallbacks, A/B variants, CAN-SPAM/GDPR/CASL compliance checks, a test send you confirm, then the full send with deliverability monitoring and early engagement snapshots. No email leaves without the mandatory execution gate: a campaign summary with recipient count and risk tier (medium/high/critical by list size) that you must explicitly approve. Triggers on "/digital-marketing-pro:send-email-campaign", "send this newsletter to the active list", "deploy the Q1 announcement email", "launch the promo email with two s…