Postgrey vs UBOS
A side-by-side look at Postgrey and UBOS. For an in-depth review of either product, follow the links below.
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
UBOS
Os & Utilities
UBOS (Universal Base Operating System) is a lightweight Linux distribution designed specifically for running applications in containers. It aims to make it easy to deploy and manage containerized apps.
linuxcontainersdocker
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