KatWeb vs Postgrey
A side-by-side look at KatWeb and Postgrey. For an in-depth review of either product, follow the links below.
KatWeb
Web Browsers
KatWeb is an open-source web browser focused on privacy and security. It blocks ads and trackers by default and does not collect user data. KatWeb is lightweight, customizable, and available on multiple platforms.
opensourceprivacysecurityad-blockingtracker-blockinglightweightcustomizablecrossplatform
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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