No Spam Today! SMTP Proxy 

SMTP proxy mail filter that acts between the internet and your mail server. Incoming mail is accepted from the open internet, checked for spam or viruses, and then delivered to your existing SMTP mail server. Compatible with all mail server software.
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No Spam Today! SMTP Proxy Free 

SMTP proxy mail filter that acts between the internet and your mail server. Incoming mail is accepted from the open internet, checked for spam or viruses, and then delivered to your existing SMTP mail server. Compatible with all mail server software.
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No Spam Today! for Workstations 

No Spam Today! for Workstations was created for users of Outlook, Outlook Express and all other POP3 email clients to protect mailboxes against spam, malicious attachments and viruses.
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