GFI FAXmaker for Exchange/SMTP 

Fax-enable your network users with GFI FAXmaker, the leading fax server for Exchange Server, Lotus and SMTP/POP3 servers. Without installing additional client software, users can send & receive faxes directly from Outlook or any other email clients.
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IP Mailer 

If your ISP gives your PC or router a temorary/dynamic IP address that keeps changing from time to time, this application will monitor and notice it, and automatically send emails to any amount of recipients.
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Mady MTA Service 

Mady MTA Service is a small and easy SMTP server. It's small, stable and fast. It can use in a small LAN or home network and provide mail deliver service for a small group of users.
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Mail Storage Guard 

Mail Storage Guard is an extension for Microsoft Exchange Server 2000/2003 and IIS SMTP servers, designed to protect your server from spam, prevents mail relaying, mail-bomb and NDR attacks. Works at SMTP and at storage levels.
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PBEmail 

If you want to enable your Application for Email Sending, without the need of any configuration at all then PBEmail is right solution for you. PBEmail 2.0 is an ActiveX Control and ActiveX DLL to enable programmers to send Emails from the Application
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Hotmailer 

Hotmailer is a bulk email sender, email address finder and verifier. It can efficiently search large amount of e-mail addresses from a mail server in a short time. With built in SMTP server, it will connect to the remote server and post email address
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