How to Set-Up Outgoing SMTP Email Authentication

As part of GCI’s effort to reduce SPAM through our email servers, GCI now requires SMTP authentication.


When attempting to send an email, you may see either a relay error stating, Relaying Not Allowed, or an alert box requesting you enter your password. This would be an indication you need to check Outgoing SMTP authentication on your mail client program.

Why does GCI require Outgoing SMTP authentication? In an effort to combat unsolicited commercial email (also known as SPAM), GCI requires all email accounts to authenticate with our outgoing mail server.

Customers who have established their email accounts with GCI in the last six months should already have this setting checked. If you are not sure if your account is properly setup, or need to check Outgoing SMTP Authentication to your email account, follow the steps below for your email client program.

Any device sending mail through GCI email servers will also need to enable the Outgoing SMTP Authentication. This includes cell phones, smart phones, and PDA devices. Steps are provided for the common mail programs.

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Outlook Express

  1. Open Outlook Expressprogram
  2. Click onToolstools menu
  3. Click on Accountsaccounts
  4. Click on Mail tabmail tab
  5. Ensure your mail account is highlighted and click on Propertiesproperties
  6. Click on Servers tabservers tab
  7. Under the Outgoing Mail Server section, ensure there is a check in the box next to My server requires authentication. If there is no check box, click on the box and it will apply the check

    with check

  8. Click OK
  9. Click Close
  10. Close and restart your Outlook Express program.

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Mac OS X Mail

    1. From the Mac OS X Finder, click the Mail icon in the Dock to launch the Mail application.
    2. If the Mail icon isn’t in the dock, click the Go menu and select Applications. Scroll to Mail in the Applications folder window and double-click to launch it.
    3. Click on the menu marked Mail
    1. Go to Preferences
    1. Go to Accounts
    1. In Accounts you can adjust mail settings.
        • To adjust Outgoing mail servers click on the Server Settings button under Outgoing Mail Server (SMTP).

    2. These are the Outgoing Mail Server settings.
        • Make sure “Use Secure Sockets Layer (SSL)” is unchecked.
        • To change Mail so that it does require outgoing server authentication, set the “Authentication” field to “Password

    3. Enter your User Name, and Password. The program may not pull the username and password into these fields, so ensure the correct information is entered.
    4. Saving changes: Click Okay in the Outgoing Mail Server window
    1. Then close the window by clicking on the red close button
  1. You should be returned to the normal mail window
  2. All your changes should be saved; and your computer will be set to outgoing mail authentication.

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Outlook 2002/ 2003

    1. Open Outlook 2002/ 2003
    1. Click on Tools
    1. Click on Email Accounts
    1. Ensure View or change existing email accounts is checked
    1. Click Next
    2. Highlight your email account. In this example, it is named, but yours might have a different name.
    1. Click Change
    1. Click on More Settings button
    1. Click on Outgoing Server tab
    1. Ensure the box next to the My outgoing server (SMTP) requires authentication is checked.
      • If it is not checked, then click in the box to cause a check to appear.

With the box checked

  1. Click OK
  2. Click Next,
  3. Repeat the above steps if you have more than one email account, or
  4. Click finish

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Thunderbird 1.5

    1. Launch the Thunderbird 1.5 program.
    2. Click on Tools menu
    1. Click on Account Settings
    1. Click on Outgoing Server SMTP
    1. Highlight the email account
    1. Click the Edit button.
  1. Under the Security and Authentication section,
    • Ensure the check box next to Use name and password is checked
        • If it is not checked, check the box for Use name and password
        • Enter your Username in the text box for User Name

  2. Click OK

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Outlook 2000

  1. Open Outlook 2000
  2. Click on Tools
  3. Click on Accounts
  4. If needed click on the Mail tab
  5. Highlight the email address and click on the Properties button
  6. Click on the Servers tab

  7. Ensure your screen reflects the following information:
    • Under Server Information
      • Incoming mail (POP3):
      • Outgoing mail (SMTP):
    • Incoming Mail Server
      • Account Name: Your GCI username
      • Password: Check this box so you do not have to enter the password
      • No check mark next to Log on using Secure Password Authentication
    • Outgoing mail Server
      • Ensure there is a check mark next to My Server requires authentication.
      • If there is no check mark, click on the white box and a check mark will appear
  8. Click OK. Your email address is now set to SMTP authentication.

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Windows Vista Email – Version 6 with Screen Shots

  1. Open Windows mail by clicking the Start button, then E-mail:
  2. Click on Tools
  3. Click on Accounts
  4. Highlight the email account, it may be the default, or labeled
  5. Click on Properties
  6. Click on Servers tab
  7. Enter the Incoming mail (POP3)
  8. Enter the Outgoing mail (SMTP):
  9. Ensure the box next to the My server requires authentication is checked
  10. Click on Settings
  11. Ensure the button is marked for Use same settings as my incoming server.
  12. Click OK
  13. Click OK
  14. Click Close

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