haraka/haraka-plugin-early_talker

Haraka-plugin-early_talker is a plugin for the Haraka email server that detects and blocks "early talkers" - clients that violate SMTP specifications by sending commands before receiving required responses. It introduces configurable delays after the connection banner and DATA command to identify these violations, automatically rejecting offenders with a "You talk too soon" message. This plugin is designed for Haraka administrators who want to enforce SMTP protocol compliance and prevent potential spam or abuse from non-compliant email clients.