.gitignore

@@ -10,3 +10,4 @@
 .vscode
 .yarn
 node_modules
+config.json

ews_client.ts

@@ -92,8 +92,6 @@ export class EwsClient {
   }
 
 private async soapRequest(body: string, soapAction: string): Promise<any> {
-    const envelope = buildSoapEnvelope(body);
-
     const res = await postAsync({
       url: this.ewsUrl,
       username: this.config.username,
@@ -104,14 +102,15 @@ export class EwsClient {
         "Content-Type": "text/xml; charset=utf-8",
         SOAPAction: soapAction,
       },
-      body: envelope,
+      body,
     });
 
     if (typeof res.body !== "string") {
       throw new Error(`NTLM request failed, status=${res.statusCode}`);
     }
 
-    return PARSER.parse(res.body);
+    const parsed = PARSER.parse(res.body);
+    return parsed;
   }
 
   private extractResponseMessages(data: any): any[] {
@@ -131,12 +130,12 @@ export class EwsClient {
     return Array.isArray(msgs) ? msgs : [msgs];
   }
 
-  async verifyConnection(): Promise<boolean> {
+  async verifyConnection(): Promise<{ ok: boolean; error?: string }> {
     try {
       await this.getFolderId("inbox");
-      return true;
+      return { ok: true };
-    } catch {
+    } catch (error: any) {
-      return false;
+      return { ok: false, error: error.message ?? String(error) };
     }
   }
 

tools/auth.ts

@@ -26,11 +26,11 @@ export function registerAuthTools(server: McpServer): void {
         };
 
         const client = new EwsClient(config);
-        const ok = await client.verifyConnection();
+        const result = await client.verifyConnection();
 
-        if (!ok) {
+        if (!result.ok) {
           return {
-            content: [{ type: "text" as const, text: JSON.stringify({ success: false, error: "Connection verification failed. Check credentials and server URL." }) }],
+            content: [{ type: "text" as const, text: JSON.stringify({ success: false, error: result.error ?? "Connection verification failed" }) }],
           };
         }
 
@@ -57,15 +57,16 @@ export function registerAuthTools(server: McpServer): void {
       try {
         const config = loadConfig();
         const client = new EwsClient(config);
-        const ok = await client.verifyConnection();
+        const result = await client.verifyConnection();
 
         return {
           content: [{
             type: "text" as const,
             text: JSON.stringify({
-              authenticated: ok,
+              authenticated: result.ok,
               email: config.email,
               serverUrl: config.serverUrl,
+              error: result.error,
             }),
           }],
         };