No Spam Today! SMTP Proxy Free 2.3.1.2

"No Spam Today! is an SMTP proxy server based spam filter that sits between the internet and your mail server. Incoming mail is accepted from the open internet, checked for spam, and is then delivered to your existing SMTP mail server. During this process the included, renowned SpamAssassin� engine will flag spam mail in the subject line and add a filtering report to spam mails according to your configuration." Source: addict3d.org