How to fix Outlook Timeout Error 0x8004210a – Causes & Solutions

“Hello! From the past few years, I am using Outlook 2016 application for communicating with my clients. But, from a couple of days, I am getting this error message “Outlook timeout error -0x8004210a” while sending or receiving any emails. Although I tried some manual tricks to fix the issue. Still, I am not able to receive any emails. Can you have any solution for the same? Kindly share with me the reliable method to fix this error 0x8004210a Outlook 2016?”

If you are also among those users who are facing the same issue, then read this article. Here you will get to know about why this Outlook timeout error 0x8004210a occurs and how efficiently you can resolve this Outlook error.

Let’s get started on.

What is Outlook Timeout Error 0x8004210a?

Outlook 0x8004210a defines an error when the POP server is timing out while waiting for a response from the email server. That’s why it is also referred to as server timeout error 0x8004210a.

Outlook Time Out Error 0x8004210a – Why It happens?

Some of the reasons behind this POP Server Timeout Error 0x8004210a are as follow:

1. If your email server is temporarily unavailable or network failure.
2. Active Windows Firewall or incorrect configuration of the firewall.
3. Existence of any antivirus application is probably disrupting the MS Outlook.
4. Due to improper configurations in the time-out settings of Exchange Server.
5. Incorrect specification of port numbers within the MS Outlook email client.

In the above section you have seen there are several technical faults that are associated with MS Outlook due to which users abruptly face POP Server Timeout error 0x8004210a.

Now, let’s proceed towards its resolution part which is discussed in the subsequent segment.

How to Rectify Outlook Error 0x8004210a?

Here, we have mentioned some of the ways to fix Microsoft Outlooktime out error 0x8004210a issue.

1 – Configure Time-Out Server Settings:

1. Launch MS outlook
2. Go to “File” >>click on the “Account Settings” option.
3. Select the target account and click the Change option.
4. Hit on the “More Settings” in the Change Account window.
5. An internet E-mail Setting dialog box will open, select the Advanced tab.
6. Now, adjust the Server Timeouts range by turning the slider towards the right side.

2 – Configure Incoming Server Settings by Port Numbers:

Most of the Outlook send / receive errors occur due to incorrect port numbers. It can be a POP or SMTP. But, wrong input of these port numbers (especially, POP/incoming port) can increase the risk of Outlook keeps timing out error. Always, set the given pop3/pop (incoming server settings) for Outlook:

Specify port number 995 with SSL Authentication

3 – Repair Outlook Application

You can try to repair it via repairing Office.

1. Go to “Control Panel”. And click “uninstall programs”.
2. Then, go to Microsoft Office and hit “Change” button.
3. In the last step, select the “repair” and click on the “Continue” button.

4 – Create a new profile in Outlook

You can avoid this time out error and send & receive emails after creating a new profile in Outlook. Follow the steps given below to create a new profile.

1. Open Control Panel>>Mail>>Show Profiles and click on ‘Add‘ to create a new Outlook profile.
2. Enter the details & click on ‘Finish‘ to complete the setup of a new profile.
3. Now, again open Control Panel >>Mail>>Show Profiles.
4. Select the profile which you just created and choose ‘Always use this profile‘ option to set this profile as default.

5 – Repair Outlook Data file Using ScanPST.exe

Sometimes in major cases, Outlook data files, especially PST emails got corrupted because of improper send / receive mechanism. In these circumstances, it is highly required to repair corrupted files to access the mail data again.

So, one can rebuild those corrupted PST files by using ScanPST.exe utility provided by Microsoft. Follow the below steps:

1. Locate the Inbox Repair Tool, double-click on the scanpst.exe.
2. Click on the browse button to insert the corrupted PST file.
3. Now, hit on the Start button to scan the file.
4. If the tool found any errors, click on the Repair button.

If none of the above methods works and unable to resolve the issue. Then, it means that there is a high probability that there is major corruption in Outlook PST file.

However, the Inbox Repair tool can repair the PST file but if the files are severely or harshly broken. Then this could lead to the permanent loss of data.

So, if you don’t want to lose your important data, then you must try this third party application.

The PST Recovery software is the automated software that helps the users to repair or recover the corrupted data files from Outlook.

It supports huge sized PST file with any level of corruption due to which it helps in resolving almost all the Outlook associated errors and problems. It is compatible with all the versions of Outlook 2019, 2016, 2013, 2010, 2007, 2003.

Final Words

This blog cover one of the common Outlook errors 0x8004210a – “MS Outlook Timeout Error”. We have mentioned the nature of this error; possible reasons behind its occurrence and some manual solutions to fix this error.