Warmy.io is an email warmup and deliverability platform that uses its proprietary AI engine, Adeline, to gradually build your sender reputation with inbox providers like Gmail and Outlook. It sends warmup emails to a network of real accounts that open, click, reply, and even rescue messages from spam. The platform also includes inbox placement testing, domain health monitoring, DNS authentication checks, and blacklist alerts. Trusted by over 35,000 businesses, Warmy is built for sales teams, marketers, and agencies who depend on email reaching the inbox.

• Adeline AI Engine: Proprietary AI that makes over 20 million daily decisions to adjust your warmup strategy based on your domain's reputation, business type, and sending patterns in real time.
• Real Engagement Warmup: Uses a large network of real inboxes to simulate natural email activity such as opens, replies, and clicks, helping build sender reputation in a realistic way.
• Inbox Placement Testing: Sends test emails across Gmail, Outlook, Yahoo, and other providers to show you exactly where your messages land before you launch a campaign.
• Domain Health Hub: Consolidates DNS authentication status, blacklist monitoring, Google Postmaster data, and reputation scoring into a single dashboard with a numeric health score.
• Custom Template Warmup: Warm up using your own email templates and subject lines so spam filters learn to trust the actual content you plan to send.
• Free DNS Tools: Includes free SPF and DMARC record generators to fix authentication misconfigurations that hurt deliverability.

• Fast, Simple Setup: Most users report getting started within minutes with no technical expertise required. The onboarding process is straightforward and guided.
• Clean, Visual Dashboard: The interface makes it easy to track inbox placement trends, warm-up progress, reputation status, and blacklist alerts all in one place.
• Hands-Off Automation: Once configured, the AI manages everything automatically, including auto-archiving warmup emails so they don't clutter your inbox.

• Limited Customization on Lower Plans: Advanced controls like faster ramp-up speeds, API access, and inbox-specific rules are locked behind higher-tier plans ($279/month and above).
• Outlook Performance Can Be Inconsistent: Some users report that warmup results for Outlook accounts are slower and less reliable compared to Gmail.
• Analytics Could Go Deeper: While the dashboard covers the basics well, power users looking for granular deliverability reporting and detailed historical analytics may find the data insufficient.

• New Domain Warmup for Cold Outreach: You just bought a fresh domain for your sales team's outbound campaigns. Warmy gradually ramps up sending volume with real engagement signals, building trust with inbox providers so your prospecting emails don't land in spam from day one.
• Recovering a Blacklisted Sender Reputation: Helps improve deliverability for domains with poor reputation by rebuilding trust signals over time through consistent warmup activity.
• Pre-Campaign Deliverability Testing: Before launching a major email marketing campaign, you use Warmy's inbox placement tests to check where your template actually lands across Gmail, Outlook, and Yahoo. You catch a spam-folder issue with your subject line and fix it before sending to your real list.
• Agency Managing Multiple Client Inboxes: Your agency runs outreach for several clients. Warmy's workspace feature lets you manage warmup across all client inboxes from one dashboard, with team roles and permissions to keep things organized.
• Maintaining Sender Reputation Over Time: You've built a solid sending reputation, but need to keep it healthy. Warmy runs continuous background warmup with auto-scheduled weekly inbox placement tests so you catch reputation dips or authentication failures before they impact real campaigns.
• Global Sales Teams Sending in Multiple Languages: Your team sends prospecting emails in Spanish, German, and Portuguese. Warmy generates industry-relevant warmup content in 30+ languages, making each inbox's sending pattern look natural to local email providers.