How is pii_email_37f47c404649338129d6 Error fixed?

    Microsoft Outlook has emerged as one of the most popular email sending and receiving services with around 400 million active users worldwide. It provides fantastic benefits such as security and excellent compatibility with a user-friendly environment. 

    However, unfortunately, if you’re an Outlook user, you must be familiar with many bugs and errors; some are fixable, and some of them annoy you now and then, no matter how many times you try to fix them. 

    One of such common errors is the famous [pii_email_37f47c404649338129d6] error. Let’s talk about it. 

    Error [pii_email_37f47c404649338129d6] is a widespread error that is faced by many Outlook users worldwide. You might wonder why it occurs and how you can fix it, it can be a bit tricky, but we’ve got you covered. This article will provide you with everything you need to know about the famous [pii_email_37f47c404649338129d6] error and how to fix it. 

    What is error [pii_email_37f47c404649338129d6]?

    If you’re an Outlook user, then you must be familiar with the error [pii_email_37f47c404649338129d6], so if you’re wondering why it occurs, then you’re at the right place. The reason this error occurs is due to some complications that are related to the SMTP server. What is the SMTP server? Now you might wonder; the SMTP server or The Simple Mail Transfer Protocol is a communication protocol and plays a massive role in many problems you must be facing while trying to send or receive emails. It is a commonly used Internet standard for sending out Emails and is applied everywhere. Sometimes, mismatched numbers in the SMTP server port are the main reason this error is prevalent in your Outlook account. This error causes many complications in sending and receiving emails; it often occurs due to your software’s inappropriate installation or set up.

    Most of the time, the Microsoft support team can help you in figuring out this problem very quickly, but if, for some reason, that is not the path that you want to go for, there are many ways you can solve this problem on your own. 

    Why does the error [pii_email_37f47c404649338129d6] occur?

    One of the most common reasons this error occurs is due to an outdated version of MS Outlook on whatever device you’re trying to send your Email. Several factors can result in this error: cache files, dead data, and cookies.

     You might not have an idea, but a lot of the time, softwares running in the background can collect many cache files and cookies that result in a redundant and excess amount of junk in the memory. This can result in many complications. From slowing your system to limiting your overall experience, these things happening in the background can cause some severe complications. 

    So most likely, these are also causing a problem in your Outlook and causing the [pii_email_37f47c404649338129d6] error to occur. 

    Fixing the error [pii_email_37f47c404649338129d6]:

    Though a bit confusing, this error can still be conquered very easily. There are not one but multiple ways to solve this error as solutions might work for different cases. Let’s discuss them now. 

    Updating MS Outlook:

    Before anything else, you should try and update your MS Outlook. Many of the bugs and errors you might face are probably because of the outdated version of MS Outlook installed on your device. So go ahead, open your Outlook and select the Office Account Option there. You must see an update now option. Click on that option, and you’ll be able to update your outlook account, which will help you fix the error [pii_email_37f47c404649338129d6] along with many other similar bugs. 

    Server Port Number:

    It is not the easiest way to tackle this error but still consider using it and seeing if you can solve it. It is recommended that you contact Microsoft Support rather than going into these complications yourself. 

    Problems related to the SMTP server can occur due to a mismatched server port number; this causes issues in using your email account; this is a ubiquitous factor resulting in error [pii_email_37f47c404649338129d6], but it is solvable. 

    Check if your SMTP number has been already set to 465; you should change it to 587, now save these modifications, and consider changing your SMTP port number. There are various methods to do it; you need to change to 587 in any case. 

    If you’re still unable to figure this out, consider asking Microsoft for support, and they will help you in configuring this issue. 

    Duplicate Accounts:

    Duplicate Accounts can be problematic for the working of your Outlook account as well. To prevent them from causing errors like [pii_email_37f47c404649338129d6], consider getting rid of them; you can head on to the Mailing Tab option in Review, found in Open Record Settings from the menu, and then after evaluating and identifying all of the copy accounts, get rid of them.


    Is Microsoft Outlook still causing problems? Don’t worry. If nothing else mentioned so far has worked, then consider a simple reinstallation process. Reinstalling the application can save you from a lot of unnecessary steps. Sometimes all your software needs is a simple reboot or reinstallation to function correctly. Consider doing so, and see if the error [pii_email_37f47c404649338129d6] occurs again. 

    Microsoft Support Team:

    Let’s suppose you’re able to figure out the [pii_email_37f47c404649338129d6] error on your own, then congratulations! But we understand that it is difficult for most people to understand the technicalities involved in configuring this error. So don’t worry! Microsoft’s proactive Customer Support Team is here to help you. You can reach out to them and look for guidance and consultation. They are available 24/7 to help you, and this might be the most useful option for you since figuring out the technology on your own can be challenging at times. 


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