start the path to rust

dist_ts/mail/delivery/smtpclient/utils/validation.d.ts

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+/**
+ * SMTP Client Validation Utilities
+ * Input validation functions for SMTP client operations
+ */
+import type { ISmtpClientOptions, ISmtpAuthOptions } from '../interfaces.js';
+/**
+ * Validate email address format
+ * Supports RFC-compliant addresses including empty return paths for bounces
+ */
+export declare function validateEmailAddress(email: string): boolean;
+/**
+ * Validate SMTP client options
+ */
+export declare function validateClientOptions(options: ISmtpClientOptions): string[];
+/**
+ * Validate authentication options
+ */
+export declare function validateAuthOptions(auth: ISmtpAuthOptions): string[];
+/**
+ * Validate hostname format
+ */
+export declare function validateHostname(hostname: string): boolean;
+/**
+ * Validate port number
+ */
+export declare function validatePort(port: number): boolean;
+/**
+ * Sanitize and validate domain name for EHLO
+ */
+export declare function validateAndSanitizeDomain(domain: string): string;
+/**
+ * Validate recipient list
+ */
+export declare function validateRecipients(recipients: string | string[]): string[];
+/**
+ * Validate sender address
+ */
+export declare function validateSender(sender: string): boolean;