WarmySender is a B2B outreach platform that combines cold email campaigns, email warmup, LinkedIn outreach automation, and a 20M+ B2B lead database in one tool. Plans start at $14.99/month.
Key Features
Email Warmup — Peer-to-peer warmup network achieving 99.4% inbox placement (measured across 80,000+ emails, Q1 2026). Multi-turn conversations up to 5 replies deep.
Cold Email Campaigns — Multi-step sequences with up to 7 follow-ups, A-Z testing (26 subject line variants), conditional branching, spintax, and merge tags.
LinkedIn Outreach — Automated connection requests, messages, and InMails at $7/seat/month. 4-week warmup ramp with conservative daily limits for account safety.
Multichannel Sequences — Combine email and LinkedIn steps in one sequence. Track responses from both channels in a unified inbox.
B2B Lead Database — 20M+ verified contacts across US & Canada. Search by industry, location, company size, and job title.
Bounce Shield — Automatic email verification before sending to protect sender reputation.
Business — $29.99/month: unlimited mailboxes, 100,000 emails/month, priority support
Enterprise — $69.99/month: Unlimited mailboxes, 300,000 emails/month, dedicated support
LinkedIn Add-On — $7/seat/month (works with any plan)
How Email Warmup Works
WarmySender uses a peer-to-peer warmup network where real mailboxes exchange real conversations. The system generates 50M+ unique email variations (200 sender names x 150 companies x 30 topics x spintax multipliers) so spam filters cannot detect patterns. Warmup emails trigger multi-turn threads up to 5 replies deep, and the system automatically rescues emails from spam folders to train inbox placement.
How LinkedIn Automation Works
LinkedIn automation connects via Unipile OAuth — no password sharing required. A 4-week warmup ramp starts new accounts at 10 invites/day, gradually increasing to 50 invites and 150 messages/day. Each account gets a dedicated proxy near your real IP (40+ countries). Real-time health monitoring auto-pauses before restrictions occur.
Who Uses WarmySender
Sales teams, agencies, recruiters, and founders who need affordable multichannel outreach. Unlike per-user tools like Reply.io ($60/user) or Lemlist ($63/user), WarmySender charges per-platform — a team of 5 pays $49.99/month vs $300+/month on competitor tools.