45 Responce From Only Less Then 600 Leads

Summary of the two campaigns: Both campaigns are currently about 50% complete, with 50% still remaining. We expect to receive another 40–50 positive responses by the time the campaigns finish.

cold email case study

Manual Email Campaign Success

Objective
The goal was to reach targeted prospects through a manually written cold email to generate interest and responses for B2B services.

Approach

  • Created a handcrafted email copy focused on personalized outreach.
  • Carefully selected and verified the recipient list to ensure relevance.
  • Tracked open rates and positive responses for performance analysis.

Key Results

  • Total Emails Sent: 219
  • Open Rate: 68% (well above industry averages)
  • Positive Responses: 21 interested leads

Outcome
The campaign demonstrated how a well-written manual email can outperform automated templates, driving high engagement and generating 21 qualified opportunities—a strong conversion ratio for a single outreach effort.

cold email case study

Manual Email Campaign Success

Objective
To test if AI-written email copy could scale outreach and still deliver strong engagement and lead quality.

Approach

  • Used Clay AI to automatically generate personalized email content.
  • Built and verified a prospect list of 351 targeted leads.
  • Monitored open rates and positive replies to measure performance.

Key Results

  • Total Emails Sent: 351
  • Open Rate: 58%
  • Positive Responses: 34 qualified leads

Outcome
Despite being fully AI-generated, the campaign produced high-quality engagement and 34 positive responses, proving that AI-driven personalization can rival manual efforts while handling larger lead volumes efficiently.

cold email case study

Do Cold Emails Work?

Do Cold Emails Work?