"MailScan 4 for IAMS is the world's first "Real-Time" e-mail scanner for Internet Anywhere Mail Server. MailScan 4 for Internet Anywhere acts like a Content-Security and Anti-Virus Software for your Corporate Internet Anywhere Mail Server. It has the world's first e-mail Content-Security and Anti-Virus feature that analyzes e-mails on real time basis *before* they are delivered to your clients or servers. Both SMTP and POP3 are supported.