SendKit is an all-in-one cold outreach platform that combines a 700M+ B2B lead database, email campaign sequencing, a built-in dialer, and AI automation into a single tool built specifically for agencies and sales teams running outbound at scale. Unlike platforms built on shared infrastructure, SendKit was developed entirely from scratch with isolated, dedicated IPs and unique client IDs per customer. This means your sender reputation is completely yours no other user on the platform can damage your deliverability. The warmup system analyzes email headers in real-time and dynamically adjusts sending volume, with a self-healing architecture that auto-recovers mailboxes without manual intervention. Key capabilities include ESP matching (Gmail→Gmail, Outlook→Outlook) for higher inbox placement, SEG protection for enterprise leads behind Proofpoint or Mimecast, unlimited email validation, AI-powered reply tagging with custom categories, automated A/B testing that disables losing variants on its own, and copy fatigue detection that rotates messaging before ESPs flag it. The integrated power dialer lets you call prospects directly from any lead profile with local presence dialing, call recording, and transcription eliminating the need for a separate calling tool. A 2-way Slack integration allows your team to get notified and reply to leads without leaving Slack. For agencies, SendKit offers full whitelabel with custom domains, logos, and branded reporting at the workspace, campaign, or organization level. One-click InboxKit import makes migration seamless, preserving warmup progress and all settings. The platform also integrates with Clay, HubSpot, Salesforce, Pipedrive, and Attio, with full API access for custom workflows. Pricing starts at $99 month (Essential) for 75,000 emails/month, $499/month (Pro) for 500K emails/month,$899/month (Agency) for 2.5M emails/month and $2499 (Power) for 10,000,000 emails/month all with unlimited workspaces, team members, lead uploads, and email validation included.