Cold Email
Personalized outreach email sent to prospects who haven't heard from you, dependent on deliverability infrastructure to land in the inbox.
Cold email is the cheapest outbound channel per contact and the easiest to burn. The difference between landing in the inbox and the spam folder is infrastructure: dedicated domains, gradual warm-up, authentication, and clean lists.
The channel's ROI is won after the reply — answering positive responses fast enough to book the meeting before the prospect cools off, which is where AI follow-up changes the math.
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