Apache Traffic Server vs Postgrey
A side-by-side look at Apache Traffic Server and Postgrey. For an in-depth review of either product, follow the links below.
Apache Traffic Server
Network & Admin
Apache Traffic Server is an open-source caching proxy server that is fast, scalable and configurable. It can improve web server performance by caching frequently accessed content and handling requests instead of web servers.
cachingproxyperformanceweb-server
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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