fix(core): update

ts/mailgun.classes.account.ts

@@ -51,7 +51,7 @@ export class MailgunAccount {
   /**
    * sends a SmartMail
    */
-  public async sendSmartMail(smartmailArg: plugins.smartmail.Smartmail, toArg: string, dataArg = {}) {
+  public async sendSmartMail(smartmailArg: plugins.smartmail.Smartmail<interfaces.IMailgunMessage>, toArg: string, dataArg = {}) {
     const domain = smartmailArg.options.from.split('@')[1];
     const formFields: plugins.smartrequest.IFormField[] = [
       {
@@ -98,6 +98,10 @@ export class MailgunAccount {
 
   public async retrieveSmartMailFromMessageUrl(messageUrlArg: string) {
     const response = await this.getRequest(messageUrlArg);
+    if (response.statusCode === 404) {
+      console.log(response.body.message);
+      return null;
+    }
     const responseBody: interfaces.IMailgunMessage = response.body;
     const smartmail = new plugins.smartmail.Smartmail<interfaces.IMailgunMessage>({
       from: responseBody.From,
@@ -106,14 +110,16 @@ export class MailgunAccount {
     });
 
     // lets care about attachments
-    for (const attachmentInfo of responseBody.attachments) {
-      const attachmentName = attachmentInfo.name;
-      const attachmentContents = await this.getRequest(attachmentInfo.url, true);
-      smartmail.addAttachment(new plugins.smartfile.Smartfile({
-        path: `./${attachmentName}`,
-        base: `./${attachmentName}`,
-        contentBuffer: attachmentContents.body
-      }));
+    if (responseBody.attachments && responseBody.attachments instanceof Array) {
+      for (const attachmentInfo of responseBody.attachments) {
+        const attachmentName = attachmentInfo.name;
+        const attachmentContents = await this.getRequest(attachmentInfo.url, true);
+        smartmail.addAttachment(new plugins.smartfile.Smartfile({
+          path: `./${attachmentName}`,
+          base: `./${attachmentName}`,
+          contentBuffer: attachmentContents.body
+        }));
+      }
     }
 
     return smartmail;