Analyze and optimize your cold email subject lines for better open rates and deliverability. Get instant feedback on length, spam triggers, and best practices. (Powered by InboxAssist strategies)
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Subject Line Score
✅ What's Working Well
⚠️ Areas for Improvement
🎯 Subject Line Best Practices
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DO This
Keep it ultra-short: 1-3 words (2 is ideal)
Use Title Case: Capitalize each major word
Stay neutral & factual: Sound like an internal task