QK SMTP Server 

QK SMTP Server is a powerful but easy-to-use smtp server software, which can send mails from localhost to the recipients' mailboxes directly at an amazingly high speed. Arrived or not, you will get a feedback instantly.
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ANSMTP SMTP Component Build 

Powerful, easy- to-use and full-featured SMTP email component enables your ASP, VB, VBA, VC++, C#, VB.NET, JScript.NET, ASP.NET or other COM environment applications to send rich TEXT/HTML email based on SMTP/ESMTP protocol. Support IPv6.
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The Email Server 

The Email Server is a Microsoft Windows-based SMTP and POP3 server
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SMS-it 

SMS-it allows you to send SMS (Text, pictures, ringtones) to a mobile phone from your computer. It sends through a modem, the internet or an attached mobile phone
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Cloudeight Smileycons 

Smileycons makes it easy to insert smileys, emoticons and animations in your email and message board posts with one click of your mouse or drag/drop. Smileycons are spyware and adware free and features the cutest smileys on the web!
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HaveTheyReadItYet 

A freeware privacy-protection and receipt-notification tool that inserts user-creatable/selectable images called "stamps" into outgoing e-mail messages. Both senders and receivers can click on the stamps to see when and where the message was read.
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