SpamTitan

SpamTitan is an email security and filtering service that screens incoming mail before delivery, aiming to stop spam, phishing, malware, ransomware, and links to malicious websites. It can be deployed as a cloud service or as an on-premise gateway appliance, and it can supplement the native email security provided by Microsoft 365.

Core capabilities include dual antivirus protection, sandboxing for suspicious attachments, Bayesian autolearning and heuristic analysis, and multi-layered checks using RBLs, recipient verification, SPF, DKIM, and DMARC. Administrators can manage allowlists, blocklists, greylisting, recipient verification, outbound scanning, attachment filtering, content filtering, and geo-blocking, with granular policies at user, domain, and domain-group level. Reporting includes quarantine reports, email history search, filtering, export, predefined system reports, and scheduled reports. The service integrates with Microsoft 365, Active Directory, and LDAP.

SpamTitan is aimed at businesses and managed service providers, with an MSP-oriented offering that fits into existing technology stacks. A free trial is available, and pricing is provided through a quote based on the organization's requirements.