Smartlead

Smartlead is a cold email outreach platform, built by 521 Products Pty Ltd, aimed at sales teams, agencies, and B2B companies running outbound campaigns at scale. Its core offering centers on deliverability: unlimited mailboxes, AI-driven email warmup that simulates human-like conversations between connected inboxes to build sender reputation, and SmartInfra, a dedicated infrastructure layer with owned IPs meant to keep sending domains healthy as volume grows. Beyond warmup and sending, the platform bundles several other pieces of the outbound workflow into one product: SmartProspect for sourcing verified B2B leads, SmartAgents for AI-assisted research and personalization, a Master Inbox that consolidates replies from every campaign and client into one view, SmartDialer for multi-channel calling, and a built-in Kanban-style CRM for tracking deals without switching tools. It also integrates with HubSpot, Salesforce, Pipedrive, Clay, Listkit, Zapier, Make, and n8n, and exposes webhooks and an API for teams that want to build on top of it. The company reports over 100,000 businesses using the platform. Pricing is tiered by lead and email volume, starting around $39/month for a basic plan and scaling to custom enterprise pricing for larger sending volumes, with a free trial available. Because so much functionality is bundled together, teams that only need simple cold email sending may find the product more complex than they require.