ProductiveMail 1.5
ProductiveMail lets you know in real time when your emails are received and read
License:Shareware, 29.50 to buy Size: 1693KB

Vemail Voice Email Software for Windows 1.00
Lets you send voice recordings by email
License:Freeware, 0 to buy Size: 233KB

ActiveEmail SMTP E-mail Development Kit 2.2
SMTP e-mail SDK for VBScript, ASP, VB, VC++ and VB.NET and VC#.NET
License:Shareware, 149 to buy Size: 1102KB