@scaling_shields: Auto-write subject lines from prospects' own client logos with Clay
Used Clay to scrape agencies' testimonial pages and insert a named client into the subject line. A/B test of 1,000 sends: calls booked rose from 3 to 14 and reply rate from 1.2% to 4.8%; across 3 clients, average reply rate went from 0.9% to 3.5%.
Source
Practitioner post by @scaling_shields on X · Mar 12, 2026
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More on this tool: Clay sales use cases
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