How to Enable SMTP Auth Using Outlook 2003 or Outlook 2007

This document explains how to enable universal email access using SMTP AUTH in Outlook 2003 or Outlook 2007 for Windows, and set the port to 587.

If you are traveling and using your computer, you may experience difficulty sending email using a connection service other than Create Hosting. For example, a hotel's Internet service or connecting at a Starbucks Coffee Company's wireless service. Some connection services also block the standard port for sending email, SMTP Port 25. Working around this issue requires changing the SMTP Port 25 to Port 587. Please note that once this change has been made you will NOT need to change it back. These settings will work accessing your email from anywhere.

  • Open Outlook.
  • Click Tools > Account Settings.
  • Select the mail account and click Change.
  • In the Outgoing mail server (SMTP) field, click the More Settings button.
  • In the Outgoing Server tab, select "My outgoing server (SMTP) requires authentication" and select the "Use same settings as my incoming mail server" radio button.
  • In the Advanced tab, change the Outgoing server (SMTP) port to 587.
  • Set the"Use the following type of encrypted connection" to Auto.
  • Click OK.
  • Click the Test Account Settings button to set the new settings.
  • Ensure that you are able to send and receive correctly.
  • Click Next then Finish.
  • SMTP Port 587 has now been enabled.


For the full Outlook 2007 setup instructions, please refer to the following:

How to Set Up Mail in Outlook 2007 for Windows

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