update

ts/mail/delivery/smtpclient/smtp-client.ts

@@ -57,20 +57,27 @@ export class SmtpClient extends EventEmitter {
    */
   public async sendMail(email: Email): Promise<ISmtpSendResult> {
     const startTime = Date.now();
-    const fromAddress = email.from;
-    const recipients = Array.isArray(email.to) ? email.to : [email.to];
+    
+    // Extract clean email addresses without display names for SMTP operations
+    const fromAddress = email.getFromAddress();
+    const recipients = email.getToAddresses();
+    const ccRecipients = email.getCcAddresses();
+    const bccRecipients = email.getBccAddresses();
+    
+    // Combine all recipients for SMTP operations
+    const allRecipients = [...recipients, ...ccRecipients, ...bccRecipients];
     
     // Validate email addresses
     if (!validateSender(fromAddress)) {
       throw new Error(`Invalid sender address: ${fromAddress}`);
     }
     
-    const recipientErrors = validateRecipients(recipients);
+    const recipientErrors = validateRecipients(allRecipients);
     if (recipientErrors.length > 0) {
       throw new Error(`Invalid recipients: ${recipientErrors.join(', ')}`);
     }
     
-    logEmailSend('start', recipients, this.options);
+    logEmailSend('start', allRecipients, this.options);
     
     let connection: ISmtpConnection | null = null;
     const result: ISmtpSendResult = {
@@ -79,7 +86,7 @@ export class SmtpClient extends EventEmitter {
       rejectedRecipients: [],
       envelope: {
         from: fromAddress,
-        to: recipients
+        to: allRecipients
       }
     };
     
@@ -114,8 +121,8 @@ export class SmtpClient extends EventEmitter {
         throw new Error(`MAIL FROM failed: ${mailFromResponse.message}`);
       }
       
-      // Send RCPT TO for each recipient
-      for (const recipient of recipients) {
+      // Send RCPT TO for each recipient (includes TO, CC, and BCC)
+      for (const recipient of allRecipients) {
         try {
           const rcptResponse = await this.commandHandler.sendRcptTo(connection, recipient);
           if (rcptResponse.code >= 400) {