Microsoft Outlook enables seamless email communication when all the necessary prerequisites are met, and settings are correctly configured. However, if any one of these settings becomes misconfigured or incorrect, it can disrupt email communication, leading to the user encountering error messages whenever they attempt to send an email.

One such error is 0x80040607 and the following is its message –

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

When Outlook encounters such an error, it often exhibits multiple concurrent symptoms, such as the application freezing upon launch, significantly prolonged task completion times, and data in various accounts becoming inaccessible. These symptoms collectively contribute to a disrupted user experience.

What are the causes of the error – 0x80040607?

There are multiple reasons behind the above error0x80040607 –

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

The primary reason for this error is typically an incorrect SMTP/POP account configuration. To resolve error 0x80040607, you can review your Outlook Outgoing Server settings and verify your connection. Additionally, adjusting the SMTP/POP authentication settings within Outlook can help rectify the issue.

How to fix the error 0x80040607 in Outlook?

To resolve error 0x80040607, you can rectify the issue by modifying the SMTP authentication settings in Outlook. Here's how you can make this adjustment:

  1. In MS Outlook, go to File, select Account Settings, and click Account Settings.
  2. Select the required account; click Change.
  3. Now click More Settings.
  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. Now Outlook will test your settings and then will display the status.
How to fix Outlook errors due to PST corruption?

Outlook errors often stem from damaged and corrupted PST files, and you can address these issues by repairing the damaged PST files. You have two repair options at your disposal: the Inbox Repair tool or a third-party tool. However, it's important to note that the Inbox Repair tool can only handle files with a size of less than 2GB. Therefore, if you're dealing with PST files larger than 2GB, you'll need to opt for a third-party solution like Kernel for Outlook PST Repair. This tool offers several prominent features, including:

  • Repairs bulky PST files without file size limitation
  • Restores permanently deleted items & attachments
  • Exports repaired PST files to Exchange & Office 365
  • Provision to split PST files in to multiple PST files