How to Write Cold Email Subject Lines by Persona

Subject lines should be tailored to the prospect's role and priorities.

C-suite subject lines

Keep them strategic and concise. C-suite executives scan for strategic relevance. "{{company}}'s growth in {{area}}" / "quick thought on {{strategic_priority}}" / "{{company}} + {{market_trend}}"

VP-level subject lines

Balance strategy with operational relevance. VPs care about both the big picture and execution. "{{metric}} improvement for {{company}}" / "idea for your {{department}} team" / "how {{similar_company}} solved {{challenge}}"

Director/Manager subject lines

Focus on specific, tactical relevance. Managers care about their immediate responsibilities. "{{specific_process}} at {{company}}" / "reducing {{pain_point}} by {{percentage}}" / "question about your {{specific_tool/process}}"

The seniority-length relationship

The more senior the prospect, the shorter the subject line should be. CEO subject lines: 3 to 5 words. VP subject lines: 4 to 7 words. Manager subject lines: 5 to 9 words.

Testing by persona

A/B test subject lines within each persona segment separately. What works for CTOs may not work for CMOs. Persona-specific testing produces persona-specific winners.