MDaemon Email Server
MDaemon is an on-prem Windows-based email server with groupware features like shared calendars, contacts, and tasks. It includes built-in anti-spam, anti-virus, and email encryption modules. An ActiveSync component syncs data to mobile devices. MDaemon’s webmail client supports public folders and user-level filtering. The security suite includes DKIM, SPF, and DMARC support to reduce spoofing. A domain manager allows multi-domain hosting. MDaemon suits small to mid-sized organizations wanting local control over email and collaboration tools without going to major hosted providers.