Senders above 5,000 messages a day need authentication, alignment and one-click unsubscribe, and since November 2025 Google returns permanent rejections rather than delays.
3 weeks to first $No spendUnder 5 hrs a weekintermediate
Tools
CClaudeKlKlaviyoPTGoogle Postmaster Tools
Five stages. You are on one.19 tasks · 5 prompts written for this plan