freeCodeCamp vs Postgrey
A side-by-side look at freeCodeCamp and Postgrey. For an in-depth review of either product, follow the links below.
freeCodeCamp
Education & Reference
freeCodeCamp is a free, open source coding platform that offers interactive coding challenges and projects to help people learn web development. It has a large community of developers and allows users to earn certifications.
open-sourceweb-developmentcoding-challengesinteractive-learningcommunity
Postgrey
Network & Admin
Postgrey is an SMTP proxy program that temporarily delays mail delivery to help mitigate spam. It uses greylisting to reject initial email delivery attempts, forcing email servers to retry sending messages and confirming they are not spammers.
greylistingsmtpemail-deliveryantispam
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