NetMail is an E-mail system for local networks and mobile access, either with the built-in webmail interface, or using NetMail's own client software. Uses highly efficient compression and full-duplex transfer for GSM/UMTS and satellite connections like Thuraya and Iridium. Gateway includes heuristic virus detection and rule-based spam filter so that these E-mails are not forwarded to network or mobile users. Menu language is selectable (English, German, French, Spanish).