From eScan Wiki
MailScan for SMTP Server Setup (size: 77,239,680 Bytes)
http://update5.mwti.net/download/mailscan/ms610a/mssm610a.exe
http://update6.mwti.net/download/mailscan/ms610a/mssm610a.exe
ftp://ftp.microworldsystems.com/download/mailscan/ms610a/mssm610a.exe
MD5 Hash of mssm610a.exe: 6037a52b6ef7e5ee96575482e66d6432