Mass Mailing Paseo allows you to send e-mails automatically (SMTP) and individually to a large number of recipients. Each mail can be personalized (Subject and Text); Attach files; Import your recipients list from any database; Refresh and report.
Mass Mailing Pase is open source; It is an XML script which needs PaseoExpress freeware to run: http://www.paseosoft.com/focus/focus-paseoexpress.php (free download)
PaseoExpress is a graphical xml development freeware for operations managers and developers that includes command mode and SDK. Model and generate your operational scripts graphically in XML format. Configure 33 process .net components such as File Management, ping, Word, Excel, SQL, Telnet, Rexec, Remote Access Service, POP, SMTP, FTP dos mode command, FTP wininet, FTP catalyst, log, timer... native recovery mode and implicit variables included: http://www.paseosoft.com