We are Maildoso - a free lead generation tool for B2B businesses that need to scale cold outreach reliably and efficiently. Our system handles the full setup - domains, DNS, and mailboxes - with zero manual work. Users can launch hundreds of preconfigured mailboxes in minutes, skipping the usual delays and avoiding third-party setup processes entirely. It’s a fast, reliable way to get started with outbound communication.
What sets our platform apart is how it protects and improves deliverability. We’ve built in IP rotation, domain warm-up, and deliverability testing to reduce the risk of hitting spam folders. Our AI warm-up feature simulates natural human email behavior through a browser-based system, avoiding the typical automation patterns that get flagged. Whether you’re running a small outbound effort or scaling across dozens of inboxes, Maildoso keeps your outreach consistent and compliant.
We also go beyond just sending emails. With features like campaign audits, spam trigger detection, custom tracking domains, and a centralized reply inbox, users stay in control at every step. Alongside the platform, we provide resources to help you succeed - detailed guides, technical best practices, and a Slack community for peer support and troubleshooting. Maildoso is built as a full backend infrastructure for anyone serious about using the best sales outreach tools to grow pipeline and connect with leads effectively.