diff --git a/core/src/command/BaseCommand.ts b/core/src/command/BaseCommand.ts
index 6c60ce7bd..6f32fa41d 100644
--- a/core/src/command/BaseCommand.ts
+++ b/core/src/command/BaseCommand.ts
@@ -12,7 +12,7 @@ export abstract class BaseCommand<T = any> implements Command<T> {
     // this.validateRequiredFields();
   }
 
-  abstract execute(): Promise<Record<string, unknown> | boolean | null | Error>;
+  abstract execute(): Promise<string | boolean | null | Error>;
 
   private validateRequiredFields(): void {
     const methodLogger = createLogger(`validateRequiredFields`)
diff --git a/core/src/command/Command.ts b/core/src/command/Command.ts
index ac1392dc5..abd498474 100644
--- a/core/src/command/Command.ts
+++ b/core/src/command/Command.ts
@@ -1,4 +1,4 @@
 export interface Command<T = any> {
-  execute(): Promise<Record<string, unknown> | boolean | null | Error>;
+  execute(): Promise<string | boolean | null | Error>;
   validate?(): boolean;
 }
diff --git a/core/src/command/CommandExecutor.ts b/core/src/command/CommandExecutor.ts
index f4987c2a1..3a7193bac 100644
--- a/core/src/command/CommandExecutor.ts
+++ b/core/src/command/CommandExecutor.ts
@@ -23,9 +23,8 @@ export class CommandExecutor {
       }
       methodLogger.debug(`executeCommand() executing command=${command.constructor.name}`)
       const result = await command.execute();
-      const resultMsg = this.getEmailResult(result);
-      methodLogger.debug(`executeCommand() executed email-result=${resultMsg}`)
-      return { success: true, data: resultMsg };
+      methodLogger.debug(`executeCommand() executed result=${result}`)
+      return { success: true, data: result };
     } catch (error) {
       methodLogger.error(`executeCommand() error=${error}`)
       return { 
@@ -71,36 +70,4 @@ export class CommandExecutor {
       return errorResult;
     }
   }
-
-  private getEmailResult(result: Record<string, unknown> | boolean | null | Error): string {
-    const methodLogger = createLogger(`getEmailResult`)
-    if (methodLogger.isDebugEnabled()) {
-      methodLogger.debug(`getEmailResult() result=${JSON.stringify(result)}`)
-    }
-    let emailResult: string;
-    if(result === null) {
-      emailResult = `getEmailResult() result is null`
-    }
-    else if(typeof result === 'boolean') {
-      emailResult = `getEmailResult() result is ${result}`
-   }
-    else if(result instanceof Error) {
-      emailResult = `getEmailResult() error-message is ${result.message}`
-    }
-    else if(typeof result === 'object') {
-      // "accepted":["stage5@gradido.net"],"rejected":[],"ehlo":["PIPELINING","SIZE 25600000","ETRN","AUTH DIGEST-MD5 CRAM-MD5 PLAIN LOGIN","ENHANCEDSTATUSCODES","8BITMIME","DSN","CHUNKING"],"envelopeTime":25,"messageTime":146,"messageSize":37478,"response":"250 2.0.0 Ok: queued as 14B46100B7F","envelope":{"from":"stage5@gradido.net","to":["stage5@gradido.net"]}
-
-      const accepted = (result as Record<string, unknown>).accepted;
-      const messageSize = (result as Record<string, unknown>).messageSize;
-      const response = (result as Record<string, unknown>).response;
-      const envelope = (result as Record<string, unknown>).envelope;
-      emailResult = `getEmailResult() accepted=${accepted}, messageSize=${messageSize}, response=${response}, envelope=${envelope}`
-    }
-    else {
-      emailResult = `getEmailResult() result is unknown type`
-    }
-
-    return emailResult;
-  }
-
 }
diff --git a/core/src/command/commands/SendEmailCommand.ts b/core/src/command/commands/SendEmailCommand.ts
index 2a67bdd94..c43ce009c 100644
--- a/core/src/command/commands/SendEmailCommand.ts
+++ b/core/src/command/commands/SendEmailCommand.ts
@@ -39,10 +39,10 @@ export class SendEmailCommand extends BaseCommand<Record<string, unknown> | bool
     return true;
   }
 
-  async execute(): Promise<Record<string, unknown> | boolean | null | Error> {
+  async execute(): Promise<string | boolean | null | Error> {
     const methodLogger = createLogger(`execute`)
     methodLogger.debug(`execute() sendEmailCommandParams=${JSON.stringify(this.sendEmailCommandParams)}`)
-    let result: Record<string, unknown> | boolean | null | Error;
+    let result: string;
     if (!this.validate()) {
       throw new Error('Invalid command parameters');
     }
@@ -79,7 +79,8 @@ export class SendEmailCommand extends BaseCommand<Record<string, unknown> | bool
     methodLogger.debug(`emailParams=${JSON.stringify(emailParams)}`)
     switch(this.sendEmailCommandParams.mailType) {
       case 'sendTransactionReceivedEmail':
-        result = await sendTransactionReceivedEmail(emailParams);
+        const emailResult = await sendTransactionReceivedEmail(emailParams);
+        result = this.getEmailResult(emailResult);
         break;
       default:
         throw new Error(`Unknown mail type: ${this.sendEmailCommandParams.mailType}`);
@@ -93,4 +94,35 @@ export class SendEmailCommand extends BaseCommand<Record<string, unknown> | bool
       throw error;
     }
   }
+
+  private getEmailResult(result: Record<string, unknown> | boolean | null | Error): string {
+    const methodLogger = createLogger(`getEmailResult`)
+    if (methodLogger.isDebugEnabled()) {
+      methodLogger.debug(`getEmailResult() result=${JSON.stringify(result)}`)
+    }
+    let emailResult: string;
+    if(result === null) {
+      emailResult = `getEmailResult() result is null`
+    }
+    else if(typeof result === 'boolean') {
+      emailResult = `getEmailResult() result is ${result}`
+   }
+    else if(result instanceof Error) {
+      emailResult = `getEmailResult() error-message is ${result.message}`
+    }
+    else if(typeof result === 'object') {
+      // {"accepted":["stage5@gradido.net"],"rejected":[],"ehlo":["PIPELINING","SIZE 25600000","ETRN","AUTH DIGEST-MD5 CRAM-MD5 PLAIN LOGIN","ENHANCEDSTATUSCODES","8BITMIME","DSN","CHUNKING"],"envelopeTime":23,"messageTime":135,"messageSize":37478,"response":"250 2.0.0 Ok: queued as C45C2100BD7","envelope":{"from":"stage5@gradido.net","to":["stage5@gradido.net"]},"messageId":"<d269161f-f3d2-2c96-49c0-58154366271b@gradido.net>"
+      const accepted = (result as Record<string, unknown>).accepted;
+      const messageSize = (result as Record<string, unknown>).messageSize;
+      const response = (result as Record<string, unknown>).response;
+      const envelope = JSON.stringify((result as Record<string, unknown>).envelope);
+      emailResult = `getEmailResult() accepted=${accepted}, messageSize=${messageSize}, response=${response}, envelope=${envelope}`
+    }
+    else {
+      emailResult = `getEmailResult() result is unknown type`
+    }
+
+    return emailResult;
+  }
+
 }
\ No newline at end of file