Warmy
Email & MarketingAI-powered email warm-up tool that improves email deliverability by optimizing domain reputation and bypassing spam filters.
Warmy is an all-in-one email deliverability platform that uses AI-driven automation to warm up domains and IPs for email outreach campaigns. The tool integrates with major email providers and uses Google Postmaster AI to optimize email placement, helping messages avoid spam folders and promotions tabs. Trusted by over 35,000 businesses, Warmy provides real-time insights into email placement, domain reputation, and DNS configuration. Setup takes approximately 25 seconds, and the platform reports helping customers achieve 2.3x higher open rates and 3x higher click rates.
Best for
Marketing and sales teams running high-volume email outreach campaigns who need to maintain strong domain reputation and inbox placement rates.
Last updated: March 19, 2026
21/50
Overall Score
API Quality
5/10
GTM Relevance
16/20
PricingFreemium
Complexityeasy
Learningeasy
Visit warmy.io →API Analysis
REST API
—
—
Webhooks
—
—
GraphQL
—
—
OAuth
—
—
gmailoutlookyahoosendgridmailgunpostmarksmtpzapier
Pricing
freemiumFree Tier
7-day free trial available, no credit card required. Paid plans start after trial period with various tiers based on number of mailboxes and features.
Strengths & Weaknesses
Strengths
AI-powered automation with Google Postmaster integration ensures sophisticated deliverability optimization without manual intervention
Quick 25-second setup process makes it accessible for teams without technical expertise
Real-time monitoring of inbox placement across spam, promotions, and primary inbox with actionable metrics
Compatible with all major email providers including Gmail, Outlook, Yahoo, and SMTP services
Proven results with customers reporting 2.3x higher open rates and 35% reduction in bounce rates
Weaknesses
Limited API documentation and no apparent programmatic access for GTM engineering integration
No webhook support for triggering automated workflows based on deliverability events
Primarily a UI-based tool with minimal options for embedding into custom technical stacks
Pricing transparency is limited on the website, requiring demo or trial to understand full cost structure
Alternatives
Reviews
Links
FAQ
What is Warmy?
Warmy is an all-in-one email deliverability platform that uses AI-driven automation to warm up domains and IPs for email outreach campaigns. The tool integrates with major email providers and uses Google Postmaster AI to optimize email placement, helping messages avoid spam folders and promotions tabs. Trusted by over 35,000 businesses, Warmy provides real-time insights into email placement, domain reputation, and DNS configuration. Setup takes approximately 25 seconds, and the platform reports helping customers achieve 2.3x higher open rates and 3x higher click rates.
Is Warmy free?
Yes, Warmy offers a free tier. 7-day free trial available, no credit card required. Paid plans start after trial period with various tiers based on number of mailboxes and features.
What are Warmy alternatives?
Popular alternatives to Warmy include Instantly.ai, lemlist, SendGrid, Mailgun, Postmark, Woodpecker, Snov.io. Compare features, API quality, and pricing on GTM Tools.
Does Warmy have an API?
Warmy has limited API support.
Who is Warmy best for?
Marketing and sales teams running high-volume email outreach campaigns who need to maintain strong domain reputation and inbox placement rates.