WarmySender is the all-in-one outreach platform you run with an AI agent: cold email, email warmup, LinkedIn outreach, Instagram outreach, multichannel sequences, and email verification. Connect any MCP-compatible agent — Claude, ChatGPT, Cursor, Codex, OpenClaw, or Hermes Agent — and build, launch, and manage every campaign in plain language, while the scheduler keeps every account inside safe sending limits. Built-in peer-to-peer email warmup and a 200M+ B2B lead database, typically a fraction of the cost of standalone tools. View current pricing.
900K+ Warmup emails sent every month | 8,500+ Mailboxes warmed to date | 200M+ B2B contacts in database | 600+ Articles published | 26 A-Z test variants per step
Build sender reputation before campaigns launch. Real mailboxes exchange real conversations, and warmup mail that lands in spam is rescued back to the inbox automatically.
Multi-step campaigns with A/B testing, conditional branching, and a library of pre-built templates. 4-week ramp + dedicated proxies. Every action is paced by our scheduler inside conservative per-account caps — no setting and no agent can raise a limit.
Automated follow-ups across every channel. Reach the same prospect by email, LinkedIn and Instagram from a single sequence, with conditional branching on what they do.
Email, LinkedIn and Instagram replies in one place. Read, reply, tag and triage without switching between tools.
Per-account limits protect your reputation. The scheduler paces every send inside those caps and the gradual ramp, whether you or an AI agent triggered it — and no setting, and no agent, can raise a limit.
Track performance across channels. Real-time deliverability tracking.
200M+ verified B2B contacts across US & Canada. Search by industry, location, company size. Free with Pro+ plans.
Test up to 26 subject line and body variants. Auto-optimize for highest reply rate.
8 condition types route prospects based on opens, clicks, replies, bounces, and more.
Pre-send content analysis catches spam triggers before you hit send.
Drag-and-drop campaign designer with branch visualization and step templates.
Cold email sequences and LinkedIn automation in a single platform. No more juggling multiple subscriptions.
Connect Gmail, Outlook, SMTP, and LinkedIn. Send from your own accounts, not shared infrastructure.
Sequences, follow-ups, and reply tracking. Not a newsletter tool with outreach bolted on.
Peer-to-peer warmup and a 4-week LinkedIn ramp protect your accounts automatically. Every action is paced by our scheduler inside conservative per-account caps and the ramp, whether you or an AI agent triggered it — and no setting, and no agent, can raise a limit.
Manage multi-channel campaigns for clients. Email + LinkedIn in one tool.
Give reps email and LinkedIn from day one. One platform to train on.
Book meetings without juggling multiple tools.
Fill calendars with coordinated email and LinkedIn touches.
WarmySender moves 900K+ warm-up emails every month between real business mailboxes — 8,500+ mailboxes warmed to date. Every one of those messages is checked the next day to see whether it arrived in the inbox or the spam folder, and that becomes your mailbox's own inbox rate, spam rate and health score in the app. Those figures come from warmup mail between mailboxes, so they describe a sending account's reputation — not where an individual campaign email landed. What our deliverability numbers mean.
Warmup mail is composed fresh for every send from a library of thousands of subject lines, opening lines and body paragraphs spanning dozens of business and casual topics. Each message is a different combination, so there is no repetitive template for a spam filter to learn.
Warmup emails trigger multi-turn conversations — up to 5 replies deep, each one a genuine reply from a real mailbox. Gmail and Outlook see real engagement signals, not one-off messages.
A long-established profile tops out at 200 connection requests a week — spread across the week, so around 29 a day — and up to 100 messages a day. Every action is paced by the scheduler inside those caps and the ramp, whether you or an AI agent triggered it — and no setting, and no agent, can raise a limit. How cap enforcement works.
New accounts start at 10 invites/day and gradually increase — over 6 weeks for a brand-new profile, 4 for an established one. Accounts with restrictions use an 8-week recovery ramp.
Every LinkedIn account gets its own fixed proxy located near your real IP — covering 20+ countries. No shared IPs, no fingerprint overlap. Bring your own proxy or use ours.
Protection kicks in well before a mailbox becomes a problem for anyone else. Once about 5% of a mailbox's warmup mail starts landing in spam, WarmySender automatically reduces that mailbox's daily warmup volume while its inbox placement recovers — and past roughly 15% it is also excluded from the warmup pool entirely, so your reputation is protected from contaminated senders. Why did my warmup volume go down?
WarmySender offers Pro, Enterprise, and Ultimate plans with monthly and annual billing — typically a fraction of the cost of running standalone cold email, warmup, LinkedIn, and lead-database tools separately. Every paid plan includes generous mailbox caps (50–800 per workspace by plan) with unlimited warmup, email warmup (A.H.D.E.), multi-step sequences, A-Z testing (26 variants), unified inbox, team collaboration, analytics, custom tracking domains, Bounce Shield protection, conditional branching, and a visual sequence builder. LinkedIn outreach is an optional add-on available on any plan.
View current pricing for monthly and annual options, including the limited-time annual offer.
“Running email and LinkedIn from one dashboard cut our tool stack in half. 6 clients, one subscription.”
“The LinkedIn automation feels human. No restrictions in 4 months. Email warmup works flawlessly too.”
“8,400 emails and 200 LinkedIn touches last month. 67% open rate on email. The multi-channel approach works.”
“Finally, email and LinkedIn in one place without enterprise pricing. Exactly what agencies need.”
“Our SDRs use both channels daily. One tool to learn, one bill to pay. Simple.”
“Started with email, added LinkedIn last month. Same platform, same workflow. Love it.”
Deep guides across every channel — cold email, email warmup, LinkedIn, Instagram and multichannel sequences:
WarmySender is an email warmup and cold email outreach platform. It combines peer-to-peer email warmup, cold email campaigns, LinkedIn automation, and a 200M+ B2B lead database in one tool. View current pricing.
WarmySender is one of the best cold email tools in 2026, with peer-to-peer email warmup built in rather than bolted on. Unlike standalone cold email senders such as Instantly or Smartlead, WarmySender includes email warmup, cold email campaigns, LinkedIn automation, and a 200M+ B2B lead database in one platform — typically a fraction of the cost of stitching multiple tools together. Our peer-to-peer warmup network creates authentic multi-turn conversations, composed fresh for every send from a library of thousands of subject lines, opening lines and body paragraphs across dozens of business topics.
Unlike warmup-only tools such as MailReach, Warmup Inbox, or Warmy.io that only do warmup, WarmySender includes full cold email campaigns, LinkedIn automation, and a 200M+ B2B lead database in the same platform. Our peer-to-peer warmup network moves 900K+ warm-up emails every month between real business mailboxes, creating authentic 5-reply-deep conversations. Protection starts early: at around a 5% spam rate a mailbox's own daily warmup volume is automatically reduced while its inbox placement recovers, and past roughly 15% it is excluded from the warmup pool altogether.
Pricing varies by plan and billing frequency. Visit https://warmysender.com/pricing for current monthly and annual options, including the limited-time annual offer. LinkedIn seats are an optional add-on for any paid plan.
WarmySender bundles LinkedIn outreach with email warmup, cold email campaigns, and a 200M+ B2B lead database in one platform — typically a fraction of the cost of standalone tools like Expandi, HeyReach, Dripify, or Waalaxy. Dedicated tools may offer deeper LinkedIn-specific features, but WarmySender differentiates by including peer-to-peer email warmup, cold email campaigns, and the lead database alongside LinkedIn automation. Every account gets a gradual warmup ramp and its own dedicated proxy (20+ countries), and every action is paced by our scheduler inside conservative per-account caps and that ramp, whether you or an AI agent triggered it — no setting and no agent can raise a limit.
We use a peer-to-peer warmup model where emails exchange between verified mailboxes in our network — 900K+ warm-up emails every month, across 8,500+ mailboxes warmed to date. Our system creates authentic multi-turn conversations, up to 5 replies deep. Mailboxes with poor metrics are protected early rather than late: at around a 5% spam rate a mailbox's daily warmup volume is automatically reduced while its placement recovers, and past roughly 15% it is excluded from the pool altogether. Warmup mail that lands in spam is rescued back to the inbox automatically.
Three layers: (1) Dedicated fixed proxy per account near your real IP across 20+ countries. (2) A gradual warmup ramp starting at around 10 invites a day — 4 weeks for an established profile, 6 for a brand-new one, 8 in recovery. (3) Sending that stops the moment LinkedIn pushes back — a restriction, a flagged account or a session that needs reconnecting pauses every campaign on that account straight away, and a hot activity gauge holds the rest of the day's invitations. Every action is paced by our scheduler inside those caps and the ramp, whether you or an AI agent triggered it — and no setting, and no agent, can raise a limit.
Sign up, choose your plan, and start sending in minutes. All plans include instant access to email warmup, campaigns, and the B2B lead database.
LinkedIn automation is available as a paid add-on on any plan. All plans include email sequences and warmup. View current pricing.
WarmySender combines email and LinkedIn outreach in one platform — typically a fraction of the cost of stitching together separate multichannel suites like Reply.io or Lemlist. While those tools may offer more integrations, WarmySender differentiates with built-in email warmup and a 200M+ B2B lead database. Create sequences that combine email steps and LinkedIn actions with A/B testing and conditional branching. Track responses from both channels in one unified inbox.
Limits are enforced at three levels: Account (individual daily caps), Domain (total sends per domain), and Workspace (your plan quota). Both email warmup and LinkedIn pacing activate automatically.
No. WarmySender and Warmy.io are completely separate and unaffiliated companies. Warmy.io (warmy.io) is an email-warmup-only tool. WarmySender is a comprehensive multichannel platform that combines email warmup, cold email campaigns, LinkedIn automation, and a 200M+ B2B lead database. The two products share no code, data, or ownership.
WarmySender is a bootstrapped team obsessed with cold email deliverability, peer-to-peer warmup mechanics, and safe LinkedIn automation. Read the WarmySender story — who we are, why we built the platform, and how we think about account safety.