Instantly.ai

An AI-powered cold email outreach platform for sales teams, agencies, and lead generation professionals sending high volumes of prospecting emails. Instantly handles sending from multiple mailboxes simultaneously with automatic email warmup to build sender reputation and avoid spam folders. The AI writing assistant generates personalized opening lines and full email sequences from a prospect's LinkedIn profile or company website. A built-in lead database contains over 160 million B2B contacts for prospecting. A/B testing runs subject line and body copy variations automatically to find the best-performing sequences. Analytics show reply rates, meeting booked rates, and bounce rates across all campaigns. Unlimited email account connections are included on paid plans starting at $37/month, making it cost-effective for agencies managing outreach across multiple client domains.