GTM Hub
What is Warmy.io?
Warmy.io is an AI-powered email deliverability platform that automates mailbox warm-up using its proprietary Adeline AI engine. It combines automated warm-up, inbox placement testing across 1M+ global mailboxes, continuous domain/IP reputation tracking, Google Postmaster integration, and email verification to help businesses ensure their emails reach primary inboxes instead of spam folders.
Warmy.io news
Warmy Launches Adeline AI Email Deliverability Agent
New AI agent built into the Warmy dashboard answers deliverability questions in plain language, investigates why emails land in spam, and suggests fixes. Adeline became available October 8, 2026.
Source: EZ Newswire ↗Warmy Partners with Mailvio for Retention Email Deliverability
Partnership between Warmy and Mailvio to solve deliverability challenges for retention email marketers.
Source: Warmy Blog ↗Workspace Management Feature Released
New feature allows agencies and multi-brand businesses to create up to 50 independent workspaces with separate billing, teams, and configurations.
Source: Warmy Blog ↗2025 Product Updates: Warmup with Clicks, Auto-Run Tests, Notification Hub
Major feature rollout including human-like engagement (Warmup with Clicks), smart weekly auto-run email tests, multi-channel notifications (email, SMS, webhooks), and API improvements.
Source: Warmy Blog ↗
Key features
Adeline AI Engine
Proprietary AI co-pilot that makes ~20 million automated decisions daily across hundreds of parameters to optimize warm-up and provide deliverability insights
Automated Warm-Up
Simulates natural engagement (opens, clicks, replies) across network of real mailboxes to build sender reputation without manual work
Inbox Placement Testing
Tests where emails land across Gmail, Outlook, Yahoo and 70+ other providers; seed list includes 500K+ US mailboxes
Google Postmaster Integration
Direct integration with Google Postmaster Tools to bring authentication and reputation data into Warmy dashboard
Domain & IP Reputation Tracking
Real-time monitoring of sender reputation and alerts for blocklists, DMARC/SPF/DKIM issues
Email Verification
Built-in list validation to identify problematic addresses before sending
API Access
Full REST API and MCP connections for integration with AI assistants, automation platforms, and custom workflows
Workspace Management
For agencies: create up to 50 independent workspaces with separate billing, team members, and configurations
Warmy.io pricing
Warmy shifted to sales-gated pricing circa May 2026; public site shows 'Plans starting from $49/month' for B2B and B2C senders with no published per-mailbox rates. Historical tiers (still visible in on-site comparison pages) ranged $49–$429/month per mailbox based on daily warm-up volume. Billing is per connected mailbox (no unlimited option). 7-day free trial with no credit card required.
| Plan | Price | What's included |
|---|---|---|
| Starter | $49/month per mailbox | 100 warm-up emails/day, 5 monthly placement tests, core features |
| Business | $129/month per mailbox | 300 warm-up emails/day, 10 monthly placement tests, custom templates |
| Premium | $189/month per mailbox | 1,000 warm-up emails/day, 25 monthly placement tests, premium support |
| Expert | $279/month per mailbox | 2,000 warm-up emails/day, 50 monthly placement tests, dedicated success manager |
| Platinum | $429/month per mailbox | 5,000 warm-up emails/day, 50 monthly placement tests, dedicated consultant |
Pros & cons
Pros
- + Fully automated warm-up—set up once and let AI handle execution
- + Exceptional support: G2 rating 9.7/10 for responsiveness and expertise
- + Clean, intuitive dashboard with visual-first design
- + Real engagement signals from 1M+ genuine mailboxes across major providers
- + Detailed inbox placement reports showing exactly where emails land
- + 7-day free trial with no credit card; 25-second onboarding
- + Highest G2 and Capterra ratings combined (4.8 out of 5 across both platforms)
- + Supports 30+ languages and 70+ email providers
Cons
- − Per-mailbox billing model gets expensive fast; 10 mailboxes = $490+/month at starter tier
- − Pricing not transparent; requires sales demo to see exact rates as of May 2026
- − Limited control over warm-up behavior without premium tiers
- − Doesn't fix root causes of deliverability issues (authentication, list quality, content)
- − Inbox placement test limited to 5 inboxes per ESP
- − No unlimited-mailbox plan at any tier; no pay-per-use option
Who is Warmy.io best for?
- • B2B marketers sending to corporate inboxes (Google Workspace, Microsoft 365)
- • B2C email campaigns targeting consumer mailboxes (Gmail, Yahoo, Outlook)
- • Sales and SDR teams running cold email outreach at scale
- • Email marketing agencies managing multiple client domains
- • Lead-gen agencies and SaaS founders testing new email infrastructure
Frequently asked questions
Is there a free plan?
No permanent free tier, but Warmy offers a 7-day free trial with no credit card required. You can test any plan during the trial period.
Can I change my plan later?
Yes. You can upgrade, downgrade, or cancel your subscription plan anytime from within your account settings.
How does billing work?
Warmy bills per connected mailbox per month on a recurring basis. You only pay for the warm-up volume you use. Annual billing offers 2 months free but is not publicly advertised.
Can I share a subscription with my team?
Yes. You can invite unlimited team members to a single subscription; all users share the same monthly quotas and features for that mailbox.
Does Warmy send actual emails?
No. Warmy is a warm-up and deliverability add-on only. It does not include a sequence builder, CRM, or lead database. You connect your own email account or ESP.
What payment methods does Warmy accept?
Visa, MasterCard, American Express, PayPal, and cryptocurrency.
