1.1.1.1 vs Postgrey
A side-by-side look at 1.1.1.1 and Postgrey. For an in-depth review of either product, follow the links below.
1.1.1.1
Network & Admin
1.1.1.1 is a free DNS resolution service that provides fast Internet connection speeds, improved security, and privacy protection. It routes DNS queries through optimized servers for fast performance.
dnsprivacysecurityfastfree
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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