Requirements

Operating System CPU RAM HDD Email Server
OS Windows SBS, SBS 2008, NT 4.0, 2000, XP, 2003, 2008 Server, Vista 450MHz+ 256MB 1GB
Microsoft Exchange Server 4.0, 5.0, 5.5, 2000, 2003, or 2007, Lotus Notes, Lotus Domino, SLMail, NT Mail, QMail, Netscape Mail Server, MailDaemon, LSTMP, iMail, PostOffice, Sendmail, or MailSite Email Server. Or any other SMTP or ESMTP enabled MTA or Mail Server

OS LINUX 200MHz+ 128MB 1GB
Lotus Notes, Lotus Domino, SLMail, QMail, Netscape Mail Server, MailDaemon, LSTMP, iMail, PostOffice, Sendmail, or MailSite Email Server. Or any other SMTP or ESMTP enabled MTA or Mail Server

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