Penny Post is a system to combat spam emails by making the sender "pay for email" by spending a few seconds of computing time. Outgoing mail is marked with postage stamps that convince the receiver that the sender is genuine.

Project Samples

Stamp information window A stamped email message

Project Activity

See All Activity >

Categories

Email, Security

License

GNU Library or Lesser General Public License version 2.0 (LGPLv2), GNU General Public License version 2.0 (GPLv2)

Follow Penny Post

Penny Post Web Site

You Might Also Like
Engage for Amazon Connect, the Pre-built Contact Center Platform Icon
Engage for Amazon Connect, the Pre-built Contact Center Platform

Utilizing the power of AWS and Generative AI, Engage provides your customers with highly personalized, exceptional experiences.

Engage is a pre-built, intelligent contact center platform that transforms customer service.
Learn More
Rate This Project
Login To Rate This Project

User Ratings

5.0 out of 5 stars
★★★★★
★★★★
★★★
★★
★
1
0
0
0
0
ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 0 / 5

User Reviews

Filter Reviews:
All
  • jonasaoestman Posted 2010-04-29
    It really works! Please begin develop this Add-on again!
Read more reviews >

Additional Project Details

Operating Systems

Linux, Windows

Languages

English

Intended Audience

End Users/Desktop

User Interface

Command-line, Plugins

Programming Language

JavaScript, Java

Related Categories

JavaScript Email Software, JavaScript Security Software, Java Email Software, Java Security Software

Registered

2007-07-30
Report inappropriate content