Postgrey vs Proxmox Mail Gateway
A side-by-side look at Postgrey and Proxmox Mail Gateway. 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
Proxmox Mail Gateway
Security & Privacy
Proxmox Mail Gateway is an open-source email gateway security solution that filters incoming and outgoing email to protect against spam, viruses, and other threats. It integrates with existing mail servers and runs on Linux.
emailgatewaysecurityspam-filter
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