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Postgrey vs REBOL

A side-by-side look at Postgrey and REBOL. For an in-depth review of either product, follow the links below.

Postgrey

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
REBOL

REBOL

Development

REBOL is a programming language and environment designed for distributed and networked applications. It's known for its small size, flexibility, and easy readability.

functionaldistributednetworkingsmallflexiblereadable

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