
Heyo
Cold email software built for scale with unlimited sending accounts, automatic warmup, and unified inbox management.

About Heyo
Heyo is a cold email platform designed for teams sending high volumes of outreach. It specializes in Microsoft Exchange integration, allowing users to connect unlimited sending accounts at low cost, automatically warm up email accounts to protect sender reputation, and manage all replies in a single inbox. The platform includes campaign builder tools with multi-step sequences, compliance features, and lead management for organizations running large-scale outbound email campaigns.
At a glance
Sep 2026
Listed since
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