Professional bulk email sender with live license control, OAuth2 authentication, multi-provider support, and a stunning cosmic-themed interface.
Everything you need to send professional emails at scale, with enterprise-grade security and reliability.
Instant activation with heartbeat monitoring, device fingerprinting, and remote kill switch protection.
Secure Google & Microsoft OAuth2 integration with automatic token refresh for seamless authentication.
Connect Brevo, SendGrid, Gmail, Outlook, Amazon SES, or any custom SMTP provider with ease.
8+ pre-designed email templates with dynamic placeholders like {name}, {company}, {product}.
Track delivery rates, campaign performance, and recipient engagement with detailed reporting.
Beautiful dark-themed interface built with CustomTkinter for a premium user experience.
Choose the plan that fits your needs. All plans include lifetime updates and premium support.
Test CosmicSenders Pro with our universal demo license. No credit card required.
Demo includes all core features. Upgrade anytime to remove limits.
Join thousands of satisfied customers who trust CosmicSenders Pro for their email marketing.
"CosmicSenders Pro transformed our email campaigns. The license system is bulletproof and the UI is gorgeous!"
"Finally, a bulk email tool that doesn't feel like a hack. Professional, secure, and actually works."
"The cosmic theme isn't just pretty—it's functional. Dark mode saves my eyes during late-night campaigns."