Email is a commonly used method worldwide. It can be used to send personal, business and other messages from a single account to several others. There are many platforms for sending and receiving emails. One popular one amongst all these is Microsoft Outlook. [pii_email_37f47c404649338129d6] is one of the very common errors in Microsoft Outlook.
According to the statistics of the most significant number of users for an email-sending service, Outlook stands in third place with around 400 million active users who rely on its services and feel it is the best choice.
It only falls behind Gmail and Apple iPhone mail by a few percent. So, when you are an active user of Microsoft Outlook and you are experiencing its amazing features for sending and receiving emails, it is possible that you will come across some errors as well.
Sometimes, you might find that an email is not being sent. Sometimes, the error message is elaborate and easily tells you the reason for the error, such as a poor internet connection, but at times, you might see non-descriptive error messages such as pii_email_37f47c404649338129d6.
What is [pii_email_37f47c404649338129d6]?

Since you are here to learn how to fix this error, you must have experienced it recently. In this post, you are going to find out what exactly this error is, what the reasons behind it are, and what measures you could take to get it fixed. So here we have the answers to all your queries regarding this error.
What are the reasons for the error [pii_email_37f47c404649338129d6]?
Luckily, there are several fixes available for this error. When you have to send the email from your Microsoft Outlook Express account. This error pii_email_37f47c404649338129d6 occurs because of the conflict with the SMTP server.
This happens when Outlook Express’s software preferences are poorly Set up. Making a few corrections in that would help you get this error fixed easily.
You need to have a secured connection, and for that, you have to counter-check that all the numbers:
- That have been entered into the details of the software.
- It is accurate, and there are no mistakes.
For this, you will take a look and recheck:
- The numbers on the port.
- The authentications.
- The secured connections statistics.
How to fix the pii_email_37f47c404649338129d6 error?
For this, you first need to check the account settings and see if any changes are required there. Sometimes, a single option can solve the problem. All you have to do is go to the Account Settings and click on the account that is causing this problem.

You will now see a new window appear. Click on Properties. Then, check whether the outgoing SMTP account details are correctly given.
Sometimes, the server requires authentication. If so, click on the respective radio button to authenticate Outlook so that it can send messages easily.
If it still does not work, click on More Settings and check the SMTP port number. This number should be equivalent to the F.A.E number.
If you want the connection secured, click on that option as well.
This is a simple check-and-fix method that will quickly fix the pii_email_37f47c404649338129d6 error and get your Outlook account working once again.
If it does not work for you, then you can go for the following:
6 other ways to fix pii_email_37f47c404649338129d6 error as well.
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1: Try to repair your program
Sometimes, a simple problem in your software can cause several problems that you can fix easily by simply repairing the program. Close the program, repair it, and then run it again; the problem might be solved with just that.
2: Check your antivirus program
Sometimes, the settings of our antivirus program are responsible for blocking the emails. For this, you can temporarily turn off the anti-virus and then try sending the email. It is a simple yet effective solution for the error [pii_email_37f47c404649338129d6].
3: Delete all the duplicate accounts
So, the problem persists? Do you still can’t send the email? Do not worry; there are several solutions to this problem that you can try.
One of those is to delete any other Microsoft accounts that you are using from this device. Sometimes, multiple accounts confuse the system, making it difficult for it to decide which one is the priority one.
4: Change the port number of the server
Sometimes, the problem is not with your account; rather, the problem is coming from the server. So, this time, try changing the server’s port number to help eliminate this persistent error.
5: Reinstall Microsoft to solve pii_email_37f47c404649338129d6
Dont panic if all of these steps have not helped you eliminate the error in sending the emails. This time, you should try reinstalling your program. Because some errors could have corrupted its workings.
Without any email or account issues, it could be giving the error. So, reinstalling and updating the Microsoft program could help you a lot.
6: Check for the server requirements
If all the above-mentioned steps are not working for your program, the next thing to do is to check the server’s requirements from Outlook Express.
When you open the server settings, you will find certain tabs and checks that need attention. Make sure that everything is working fine and that you have not left any stone unturned in this tab.
Using all of these solutions, you would be able to get back to:
Sending and receiving emails smoothly from your Microsoft Outlook account. We hope that with the help of these solutions, you will be able to fix the [pii_email_37f47c404649338129d6], an error that can easily frustrate you.
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