RealSender provides tools and services for controlling, securing, and managing business email. Its offerings support email delivery, authentication, filtering, archiving, and bulk communications, with options for businesses, email administrators, broadcasters, and system integrators.

The secure email gateway supports dedicated IP addresses and hostnames, digitally signed messages, and controls such as authorized-sender restrictions, attachment filtering, message limits, and protection against repeated login attempts. RealSender also offers an email delivery engine and apps for specific tasks. Inxbox provides an email server, webmail interface, and historical message archive; Spamstop checks SPF and DKIM and evaluates DMARC alignment; Bouncehandler analyzes delivery failures and supports unsubscribe management; and Copymail helps send bulk mail from an email client.

Other services include EmailConnect, a visual flow-based development tool for integrating email, and Reverseproxy, an email proxy for simplifying communications. RealSender supports sending through SMTP, APIs, and HTTP requests, and provides configuration guidance for popular email clients, servers, and newsletter platforms. Its site also features email authentication resources, delivery analysis, and related tools.