The question it answers

  1. How do I keep my cold email out of spam in the AI era?

Read with it

  1. The primary source: the exact rules Gmail enforces on senders, straight from Google. support.google.com Guide Email sender guidelines (official) Google
  2. Google's own answers to the edge cases everyone argues about. support.google.com Guide Email sender guidelines FAQ (official) Google
  3. The announcement that changed cold email forever; know what triggered the new era. blog.google Article Gmail introduces new requirements to fight spam Google
  4. The most complete practitioner guide to authentication, warmup, and volume pacing. smartlead.ai Guide Email Deliverability Guide: SPF, DKIM, Warmup & Everything That Gets You to the Inbox Smartlead
  5. A pre-flight checklist you can run before every campaign launch. smartlead.ai Guide Cold Email Checklist: Everything You Need to Send Better Emails Smartlead
  6. Concrete benchmarks like the 85%+ inbox placement target to measure yourself against. cleanlist.ai Guide The 2025 Guide to Cold Email Deliverability Cleanlist
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