Generic cold outreach often fails. To achieve a higher response rate (e.g., 50%), identify and lead with a specific, tangible point of commonality. This could be a shared university, sports team, or niche interest, which makes the recipient far more receptive to helping a stranger.

A great cold email is judged on three criteria: 1) Packaging (subject line and preview text), 2) Body (personalization, problem/solution language, and social proof), and 3) Style (personal flair, formatting, and length). Mastering all three is key to getting replies.

Many marketers mistakenly summarize their entire email in the subject line, removing any incentive to open it. To increase curiosity, provide only a hint or a compelling data point from the email's content. This creates an information gap that subscribers feel compelled to close by clicking.

Begin email subject lines with conjunctions to create an immediate sense of an ongoing story or a problem to be solved (e.g., "And then this happened" or "But here's the problem"). This copywriting technique sparks curiosity across any industry, prompting recipients to open the email to get the full context, lifting open rates by around 17%.

Both competitors used the names of the CRO's direct reports in their subject lines (e.g., "Idea for Mark and Larry's team"). This advanced tactic immediately signals deep, relevant research, showing an understanding of team structure and cutting through the noise of generic outreach.

Sales director Florin Tertulia uses cheeky, playful subject lines like "Ronald's beef. Isn't with us" to create a "scroll stopper." This tactic is designed to break the pattern of standard corporate emails, sparking curiosity and standing out in a crowded C-level inbox.

Adding a deeply personal postscript (P.S.) to cold emails, such as referencing the recipient's favorite whiskey, demonstrates genuine research and builds rapport. This simple tactic humanizes the outreach and can dramatically increase the likelihood of getting a response from a busy executive.

To break through the noise, Astronomer used a subject line that simultaneously qualified the recipient and created intrigue. This direct, almost challenging, approach proved highly effective in capturing the attention of their specific target audience—Airflow users—and drove successful email campaigns.

Many marketers mistakenly reveal the entire value of an email in the subject line, killing any reason to open it. To maximize opens, provide a compelling hint or create a curiosity gap rather than giving away the full story.