How To Fix Outlook Express Not Sending Emails?

If you can't send emails from Outlook express, there are some issues with the Outgoing mail server settings. Proceed with the steps that are given below to fix the "Outlook Express not sending emails" issue.

Outlook Express not sending emails
  • Step : 1 Ensure that you have an uninterrupted internet connection to send and receive emails.
  • Step : 2 Launch Outlook and log in to your account.
  • Step : 3 Go to the Tools menu and click the Accounts option from the displayed list.
  • Step : 4 Now, select your email account from which you can't send emails. Then, select the Properties tab.
  • Step : 5 Click the Servers tab and navigate to the Outgoing mail (SMTP) settings.
  • Step : 6 Verify whether you have entered the correct server address and port number for your domain.
  • Step : 7 Re-enter the username and password of the email account.
  • Step : 8 Checkmark the "My Server requires authentication" option.
  • Step : 9 You can set a username and password that is different from your incoming mail credentials under Settings.
  • Step : 10 Click the Advanced tab and select the Outgoing Mail section.
  • Step : 11 Now, select "This server requires a secure connection (SSL)" option if you want to send encrypted emails.
  • Step : 12 Check the port number in the Outgoing Mails section, whether it is 25, 465, or 587.
  • Step : 13 If the Sent items folder is too large, you may not be able to send emails.
  • Step : 14 Open the Outlook Express store folder on your computer.
  • Step : 15 Navigate to the Sent Items folder and check the size of the folder.
  • Step : 16 Delete the emails that are not important from the folder. You can also make separate folders for different messages.
  • Step : 17 If your files are damaged or corrupt, you cannot send emails from Outlook Express.
  • Step : 18 Go to the Outlook Express store folder and locate the Outbox.dbx file.
  • Step : 19 Rename the folder as Outlook.old to resolve the issue. You can delete the Outlook.old file if you can send emails again.
  • Step : 20 Restart your Outlook application. This should resolve the issue.
  • Step : 21 By using these above steps we can proceed to fix outlook express not sending emails.

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