Warmy.io

Overview

Warmy.io is an automated email warm-up and deliverability tool built around Adeline, its AI engine that connects to your mailbox and raises sender reputation by interacting with real inboxes on your behalf. It analyzes hundreds of deliverability parameters daily, offers inbox placement and spam-word testing, DNS and template checks, and blocklist monitoring. It supports Gmail, Outlook, and most SMTP providers. Users praise the hands-off warm-up and support, but pricing is the dominant complaint once you run more than a few inboxes.

Best for: The pick when you want a hands-off AI warm-up plus bundled deliverability testing on a small number of inboxes.

Key features

Pricing

Pricing changes often. Verify current pricing on the vendor site before you buy.

Warmy.io demo

Pros and cons

Integrations

GmailOutlookSMTPSendGridAmazon SESMailgun

Top Warmy.io alternatives

Salesgear Editor's pick

Warmy keeps a handful of inboxes warm; Salesgear pairs the same deliverability discipline with verified data, a dialer, and AI research so warm inboxes actually feed pipeline.

MailReach

Set-and-forget email warm-up with real-inbox networks and built-in spam testing.

Folderly

All-in-one B2B email deliverability platform with warm-up, diagnostics, and spam-trigger detection.

Warmup Inbox

Simple, affordable email warm-up with reputation scoring across a large peer network.

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