/**
 * MailDev Environment Variable Configuration
 *
 * Maps MAILDEV_* environment variables to configuration options
 */
import type { PartialMailDevConfig } from './types.js';
/**
 * Load configuration from environment variables
 *
 * @returns Partial configuration from environment
 */
export declare function loadEnvConfig(): PartialMailDevConfig;
/**
 * Get environment variable name for a config key
 * (useful for error messages and documentation)
 */
export declare function getEnvVarName(configKey: keyof PartialMailDevConfig): string | null;
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