Warmbox AI

Warmbox AI is an email warm-up and deliverability optimization platform designed to improve the chances that your cold emails land in the primary inbox instead of spam. By connecting your existing email account (Gmail, Outlook, custom domains, and others), Warmbox AI automatically runs realistic sending and engagement patterns that build a positive sender reputation over time. Its primary purpose is to help sales, marketing, and outreach teams increase open rates and overall email performance without manual intervention.

Once connected, Warmbox AI sends and receives emails on your behalf within a controlled network of real inboxes, automatically opening, replying, removing from spam, and marking messages as important to simulate genuine engagement. It provides deliverability analytics, including spam score insights, blacklist checks, and reputation monitoring, so you can track improvements and detect issues early. Users can customize warm-up volume, sending schedules, and scenarios based on their domain age, sending history, and campaign goals. The platform also supports multiple inboxes and domains, allowing teams to manage deliverability across several mailboxes from a single dashboard.