Imagine you’re trying to send an email in Outlook and the moment you click on Send, this error message shows up:

“Send test e-mail message: an unknown 0x80040607 error occurred”

Outlook error 0x80040607 stops your email from sending. It usually happens if the SMTP/POP settings are incorrectly configured, like an outgoing server authentication being turned off. In this blog, we’ll cover the common causes and the easy fixes to resolve this error. We’ll also talk about what steps to take if you find out that PST is causing this problem.

What are the Causes of the Error – 0x80040607?

There are multiple reasons behind the error code 0x80040607. Some of them are discussed below:

  • The SMTP and POP settings are disabled.
  • The PST data files are either inaccessible, damaged or corrupt.
  • The SMTP/POP account is not configured properly in the Outlook application.
  • PST file has exceeded the limits of its usage.

How to Fix the Error 0x80040607 in Outlook?

You can fix the error 0x80040607 by changing the SMTP authentication settings in Outlook. This is how you can change the SMTP authentication settings:

  1. In MS Outlook, go to File, select Account Settings, and click Account Settings.
    2. Account Settings
  2. Select the required account and click on the Change option.
    3. click on Change option
  3. Now click on the More Settings option.
    4. click on More Settings option
  4. In the Outgoing Server tab, check My outgoing server (SMTP) requires authentication checkbox and choose Use same settings as my incoming mail server. Finally, click OK.
    5. check My Outgoing Server (SMTP) requires authentication checkbox
  5. Now, Outlook will test your settings and then display the status.
    6. Outlook will test your settings

Outlook Error 0x80040607? Check for PST Corruption

A damaged PST file can cause a wide range of errors in Outlook. If configuring the correct SMTP/POP settings didn’t work out, try checking if your PST file is corrupt. You can easily scan the PST files for corruption with the help of the Inbox Repair tool (ScanPST.exe). If the ScanPST.exe tool does find some minor errors, you can easily repair it with this utility. If you’re unable to repair your PST files fully, you can opt for a trusted PST Repair tool to easily repair your corrupt files without losing any data. This tool can easily repair multiple damaged PST files at once, without any file size restriction.

Conclusion

Facing errors in Outlook can affect the functioning of the application. Outlook Error code 0x80040607 causes problems while sending emails. Turn on the My Outgoing Server (SMTP) requires authentication and choose Use same settings as my incoming mail server setting. If you still face this error, try sending an email with your account provider’s webmail. Just make sure to backup all your data before performing any methods to fix this error.

Aaruni Arora
Aaruni AroraTechnical Writer

This article is written by Aaruni Arora, a technical content writer at Kernel Data Recovery. This content has been reviewed in accordance with our editorial guidelines.

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