[pii_email_1503ae708066d6d351d6] Error [SOLVED]

If you are facing an error [pii_email_1503ae708066d6d351d6] then you are at the right place.

Here you will find the solution to this problem in easy to follow steps. This step wise guide will allow you to resolve the issue in no time.

I know it’s really annoying when you do all the hard work to setup your mail account and are unable to send mails at the last.

But do not worry, I will provide a working solution here to fix this issue for you.

What is [pii_email_1503ae708066d6d351d6] Error?

Before we jump into the solution directly, it is important for you to know what this error is all about.

This error is usually caused by SMTP server conflict or a bad configuration of outlook client.

We will proceed step wise from here to find the issue you are facing and resolve it.

If you are not familiar with the SMTP server settings, then let me explain you how to find the required settings to solve this issue.

How to find your SMTP server?

Since you are facing the issue with your email transmission, it is really easy to resolve this issue when you know the address of your SMTP server.

If you do not already know the exact address of your SMTP server then also its fine, let us find it out together.

You will be able to find your SMTP server details in Outlook settings by following the below mentioned steps.

Steps to Find SMTP Server Details

  1. Open Outlook
  2. Click on File menu and go to Account Settings.
  3. Select the account you are working with and click on Edit.
  4. In Outgoing Mail Server (SMTP), select the mail server and click on Edit.
  5. You will find the name of your SMTP server right there.

Now you have your SMTP server details. So now, you need to test the server to see if your server communication is not broken by any chance.

How to test an SMTP server?

If it is required to test your SMTP server then you will be able to do it easily with an inbuilt application of your operating system.

The application which I am recommending for this test is called Telnet.

Using Telnet tool, you can test your SMTP server if your email client is not working properly.


In Microsoft’s Windows Operating Systems with Windows 7 or higher, you must first install and activate Telnet manually through Control Panel. Follow the below steps to install it.

How to Enable Telnet in Windows Operating Systems

  1. Go to Control Panel
  2. Open Programs and Features
  3. Click on Turn Windows features on or off
  4. Find Telnet Client and check the box to enable it
  5. Click Ok.

After enabling Telnet Client, you will now be able to use Telnet to manually start an SMTP session and verify the following problem diagnostics:

  • Verify the SMTP implementation
  • Check the required SMTP Commands
  • Firewall or anti-virus program to detect any possible connection blocks
  • Ensure that messages are received

Steps to Test SMTP Connection

Now, to test your SMTP connection you can follow the below mentioned easy steps on your system.

These steps will help you to test the communication between the internal client and server.

  1. Open Command Prompt (you can press Window + R and type CMD then press Ok, if you are on a Windows machine).
  1. Enter the command telnet smtp.test.com 25 in your command prompt to connect to the SMTP server through port 25. Here, you have to replace “smtp.test.com” with the address of your own SMTP server.
  1. If the server is reachable, it returns a report with status codes 220 and “smtp.test.com ESMTP Postfix” or a comparable clear text message. This indicates that there is no connection error from the SMTP server.

You can then authenticate yourself and, if necessary, send a test email to further isolate the cause of the problem.

If the email does not reach its destination despite a working connection, the problem is probably with the provider or the recipient.

If there is no response or only an error message from the server, your firewall or anti-virus program may be preventing email transmission.

How to Fix [pii_email_1503ae708066d6d351d6] Error?

As discussed above, this error is mainly caused due to SMTP Server configuration issue.

Hope you will be able to follow the easy steps provided above and fix the issue.

If SMTP is not the culprit in your case, then it must be bad configuration for outlook client application which is causing this issue.

In that case it is recommended that you repair the installation of your MS office to resolve the issue.

Repairing the office installation is also an easy task.

You just have to go to the Control Panel > Programs and Features > Select MS Office from the list of installed application > Right Click Change/Uninstall > Repair.

After repairing your MS office application, you should be able to send and receive emails without any issue.

Frequently Asked Question

What is SMTP server for email?

SMTP stands for Simple Mail Transfer Protocol. It is used to transfer all your outgoing mail from your system to the recipient using a communication server.

If your email client has wrongly configured SMTP server then your mail client application will not function properly.

We use Telnet tool to test the SMTP communication to identify and fix any possible issue with SMTP server.

Where is SMTP used?

SMTP is used as a communication channel in all the email clients.

You will be able to get the details of your SMTP server by navigating to Files menu, Account Settings, select your account and then edit it and go to Outgoing Mail Server (SMTP) in your email client.

It is mandatory to have this configuration right in order for you to be able to send a mail to someone.

Why is SMTP not sending emails?

It is possible that the configuration of your SMTP server is incorrect. Check the account setting in your email client to see if you find the correct SMTP server name there.

From account settings you will be able to find the SMTP server name which is being used as your Outgoing Mail Server.

If you are facing any issue with SMTP server or if outgoing mail is not working for you then you will be able to find an easy fix above in this article.

How to solve SMTP error?

To troubleshoot SMTP error, you need Telnet client. By default, Telnet is not enabled in Operating systems, but you can go to windows features if you are using Windows OS.

After enabling the Telnet client, you will be able to use the command telnet smtp.yourservename.com port number in command prompt.

Above you will find easy to follow steps to troubleshoot SMTP error using Telnet. Follow the steps mentioned in this article and you will be able to easily fix the issue.

Can receive emails but Cannot send?

This is possibly due to the SMTP server issue because SMTP is used to send outgoing mails.

So, if you are able to receive emails but unable to send outgoing mails then you should be looking into the SMTP server configuration in your mail client.

SMTP Error in Outlook is the most common issue people face frequently. Here in this article, I have covered all the steps you should follow to fix the issue.


[pii_email_1503ae708066d6d351d6] error can prevent your outlook from sending outgoing emails. It is required to check the connectivity with SMTP server in order to fix this issue. You will be able to easily follow the steps provided in this post and fix this issue yourself.

If at all you are unable to fix it on your own, then you can provide the challenges you are facing with your outlook below in the comments section, and our experts will help you with the resolution.

Mike C. Hensley
Mike C. Hensleyhttps://okerrors.com
I am Mike, a Microsoft Certified Professional. I will provide you easy steps to resolve all your outlook related issues here.


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