How to fix Outlook error 0x80040900?

I know it is very frustrating when you access Outlook, and it greets this message: Task abc@server.com – Receiving reported error (0x80040900). The error arises due to a bad internet connection or server-related issues. Here, you will find the best solution to fix Outlook error 0x80040900. Let’s check out the details now.

Why does the Outlook Error 0x80040900 Appear? – Get Reasons

Here is the list of common reasons behind that may be responsible for the error:

• Incorrect server settings.
• Damaged Outlook profile.
• Corrupted Outlook data files.
• DNS or internet connectivity issues.
• Conflicts due to firewall or antivirus programs.

Manual Methods to Solve Outlook error 0x80040900? [Top 4]

We have tried several solutions to fix the MS Outlook Send Receive Error 0x80040900, but only these ones worked for us. Check them out now:

Method 1.Check for Connectivity Issues

First of all, make sure that you are connected to a stable network. You can face synchronization issues if the connection lags too much. Try to restart the router to fix the error.

Sometimes, antivirus or firewall programs may restrict Outlook from connecting to the server. So disable them to check whether they are causing the Outlook error 0x80040900 or not.

Method 2. Confirm the Email Server Settings

It is necessary that all the server settings are correct to experience a smooth mailing experience. Here’s how to check all of them:

1. Launch Outlook and go to the File tab.
2. Expand the Account Settings and proceed to Account Settings.
3. Tap on Change under the Email tab.
4. Navigate to the More Settings option to continue.
5. Go to the Advanced tab and verify the server details.
6. Then, increase the Server Timeout duration.

Method 3. Create A New Outlook Profile

Follow the given steps to create a new profile and establish a new connection between the server and Outlook.

1. Navigate to the Control Panel and go to Mail (Microsoft Outlook).
2. Click on Show Profiles to proceed.
3. Add a new profile by entering your email account.
4. Choose Always use this profile and Apply changes.
5. Then, tap on OK.

Method 4. Repair the Outlook Data File

The above solutions will help you solve Outlook error 0x80040900 in most of the cases. If you are still facing the same error, then your Outlook data file is corrupted. So, use the Microsoft built-in Inbox Repair Tool to fix the damaged file using the steps below:

1. Close the Outlook application.
2. Locate and Open the SCANPST.EXE utility on your system.
3. Browse to add data files and Start the process.
4. Repair the scanned inconsistencies.
5. Click OK once the process is completed.

Note: The SCANPST.EXE allows you to fix minor corruption issues in Outlook data files. If the file is severely damaged, then using the advanced solutions like Recoveryfix is the best resort. The PST Repair tool provides dual repair modes to handle file corruption at all levels. It also restores lost or deleted items from the data files without any manual effort.

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Ending Thoughts

We have covered a detailed guide on how to fix Outlook error 0x80040900 using manual solutions. You can use the step-by-step illustration to resolve the error in a few minutes. However, in case of file corruption, opt for appropriate solutions. For minor corruption, try the native approach, and for severe ones, go with the recommended ones. The professional tool will also help you manage large data files with its split feature.

FAQs: Queries Resolved in Seconds

Q- What does Outlook error 0x80040900 mean?

A- The error means that Outlook is unable to locate or connect to the mail server. As a result, you can’t send or receive emails until the error is fixed.

Q- How can I find the email server settings?

A- Here are the steps to find the email server settings:

1. Open Outlook and go to File.
2. Navigate to Account Settings > Account Settings.
3. Select Account > Change > More Settings.

Q- What are the steps to fix server name cannot be found in Outlook?

A- Fix the error using the following solutions:

1. Check the internet.
2. Verify server settings.
3. Repair the Outlook data file.

Q- Can this error also occur due to large PST files?

A- Yes, the oversized data files can cause several issues, and the Outlook 0x80040900 error is one of them. You can easily fix it by optimizing the file size.