Hotsol is built specifically for high-volume environments like sportsbooks and online casinos that need to scale player acquisition, retention, VIP reactivation, and state-launch campaigns without deliverability breakdowns.

Unlike traditional ESPs, Hotsol operates a warmed sending architecture designed for large-scale deployment — supporting operators that send significant daily volume while maintaining inbox placement and sender reputation.

We work with:

• Sports betting operators

• Online casinos

• Affiliate networks

• Lead generation partners

• Retention and CRM teams

Core services include:
• High-volume outbound email infrastructure
• Deliverability monitoring and reputation protection
• List verification and suppression management
• Segmented campaign deployment
• Reactivation and retention program support