Updated December 2024: Stop getting error messages and slow down your system with our optimization tool. Get it now at this link
- Download and install the repair tool here.
- Let it scan your computer.
- The tool will then repair your computer.
The Outlook “0x80040900” error often occurs if you have incorrectly specified the mail server name (or ports) in the Outlook account settings, or if you cannot reach the mail server due to Internet connection problems. In all these cases, you will receive the following error message during the Outlook sending/receiving process: “Task’[email protected]’ – Receiving a reported error (0x80040900): The server name you entered cannot be found on the network (it may have temporarily failed) Check if you are connected and if the server name is correct”.
Today we will discuss the Outlook error 0x80040900, which is defined by MS Outlook in a certain way on the screen at the time of its appearance:
The server name you entered is not found on the network (it can be temporarily disabled). Check that you are online and that the server name is correct.”
Troubleshooting Error 0x80040900
It is not easy to see the exact reason for this Outlook error message. However, the following are the highest possible reasons why the Outlook 0x80040900 error occurs:
- No or little Internet connection;
- Incorrect mail server settings;
- Problems with antivirus and firewall settings;
- Damaged PST file; etc.
Main causes of getting Outlook 0x80040900 Error
December 2024 Update:
You can now prevent PC problems by using this tool, such as protecting you against file loss and malware. Additionally, it is a great way to optimize your computer for maximum performance. The program fixes common errors that might occur on Windows systems with ease - no need for hours of troubleshooting when you have the perfect solution at your fingertips:
- Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
- Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
- Step 3 : Click “Repair All” to fix all issues.
There may be several causes or reasons for the occurrence of the 0x80040900 error, some of which include :
- Poor network connection
- Oversized PST file
- Virus or malware attack
- The sudden shutdown of Outlook
- Defective sectors on the storage unit
Make sure that you are connected to the Internet and that you can specify the SMTP port number.
Start an Internet browser. Or ping the google.com; ping www.google.com. You should get an answer as below if the computer is connected to the Internet.
Enter one of the following addresses in the address bar and press Enter.
http://www.microsoft.com
http://www.msn.com
Also check the proxy settings.
Adding an email account in Microsoft Outlook
There are several steps to correct the Outlook 0x80040900 error in different versions of MS Outlook.
First of all, add an email account in Microsoft Outlook and there are two ways to add it, one is to use the automatic approach and the other is the manual approach.
https://support.xbox.com/en-US/xbox-one/errors/error-code-0x80040900
Expert Tip: This repair tool scans the repositories and replaces corrupt or missing files if none of these methods have worked. It works well in most cases where the problem is due to system corruption. This tool will also optimize your system to maximize performance. It can be downloaded by Clicking Here
