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Outlook Error 0x80040900 – Causes and Solutions

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Microsoft Outlook is definitely an amazing email client offering various services towards the users. Its hassle-free solutions help organizations and people to hold forward email communication around the world. Using Outlook, users can share all of the mailbox products like emails, occasions, journals, calendars, tasks, contacts, etc. But, there are several types of errors in each and every email client and therefore in Outlook also. Here, we’ll carry forward our discussion about Outlook error 0x80040900 which occurs during send/receive operations.

What’s Outlook error code 0x80040900- A Summary

It is among the errors that come in a regular manner. It might appear even as a result of small issue. However, it mainly arises while performing send/receive operations in Outlook. It throws the mistake message once the ports or mail server are specified incorrectly within the Account settings of Outlook. The mistake message code 0x80040900 is displayed as:

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0x80040900 Error in Outlook

Error 0x80040900

Causes behind the Outlook error 0x80040900

There are a number of things which will make the appearance of Outlook 0x80040900 runtime error. A number of them are as under:

Home windows registry corruption because of installation or uninstallation of Outlook-related software.

Corruption in system files of Home windows because of Adware and spyware or Virus infection.

Improper installation or corrupt download of MS Outlook software.

Corruption in PST file of Outlook.

Signs and symptoms of Outlook Send Receive Error

The machine periodically freezes for a while.

Window crashes after the look of error 0x80040900.

Home windows become sluggish and slow to mouse and keyboard input.

A mistake message “The server name you joined can’t be located on the network (it may be lower temporarily)” is experienced.

The mistake message 0x80040900 might be experienced during installing of this program, during abrupt shutdown or startup of Home windows, or because of improper installing of Home windows OS. You have to trobleshoot and fix error in Microsoft Outlook to solve the send/receive error.

Methods to resolve the Outlook error 0x80040900

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#1 Look at your web connection

Many users just start executing various troubleshooting process and end up forgetting to check on whether or not they are linked to internet or otherwise. So, be ensured that you’re linked to a network connection after which proceed. That can be done simply by opening the browser and creating a look for a website.

#2 Check Firewall and Anti-virus settings

Sometimes, Anti-virus application or Home windows firewall blocks the e-mail server, these types of that the error seems. So, you have to disable the firewall settings and switch from the Anti-virus application to ensure that you’ll make sure that no email server ports are blocked.

#3 Look into the settings of Mail Server

You have to stick to the below-pointed out settings to effectively setup an e-mail account.

Outlook receiving reported error because of Mail Server Settings

Now, open the Account settings in Outlook and verify the email account settings per you’re correct by using the below steps:

First, Run the Outlook. Visit File ? Info ? Account Settings.

Outlook error resolve in account settings

Click on the Email Tab underneath the Account settings and double-click your email account.

Account settings in Outlook

Make sure that you have specified the right outgoing and incoming email server settings. Further, hit a click the More settings option.

error code 0x80040900 in outlook

Internet email settings window prompt is going to be opened up. Click the tab of Outgoing server. Click the checkbox of Outgoing server requires authentication accordingly.

outlook error 0x80040900

Now, visit Advanced tab and verify all of your SSL and ports settings and click on OK.

outlook error code 0x80040900

Additional method

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When the issues continue to be not resolved, check out these solutions:

Remove your email account after which recreate it.

Repair installing Microsoft Office. For doing it, undergo these steps:

Navigate to manage Panel ? Programs featuring.

Right-click the Microsoft Office installation striking a click Change button.

Finally, click the Repair option.

When the methods that have been described above fail to work, you will find high chances that the Outlook profile is corrupt. To repair it, you have to repair the Outlook PST file. That can be done while on an inbox repair tool that’s supplied by Microsoft free of charge. It’s also known as ScanPST.exe. But, keep in mind that scanpst.exe is relevant just for minor corruptions within the PST file. Should there be severe corruptions within the Outlook profile, the inbox repair tool might not be useful. For the reason that scenario, you should utilize an expert solution.

#4 Using professional Outlook repair solution

If nothing works, you can just go for an Outlook PST Repair software program. It may repair your corrupted PST file regardless of the seriousness of corruption due to its sophisticated formula. Also, the interface is very intuitive and user-friendly in order that it may be easily run by both technical and non-technical users. It’s like a demo version for any free evaluation.


All of the manual methods happen to be described. Rely on them so if you’re unable to fix the Outlook error 0x80040900, choose third-party Outlook PST Repair software. Thank you for studying this technical blog. I think you’ll thought it was helpful and fascinating.

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