Outlook Express
- Open Outlook Express
- From the Outlook Express Tools menu, click Accounts
- Click the Mail tab
- Select your email account
- In the Properties dialog box, click the Servers tab
- Check "My server requires authentication" box at bottom
- Click the Advanced tab - under Server Port Numbers
- Change the Outgoing mail (SMTP) Port from 25 to 587
- Click Apply, OK then Close
Outlook 2000
- Open Outlook 2000
- Click the Tools menu and then click Accounts
- Select your email account
- Click Properties
- In the Properties dialog box, click the Servers tab
- Check "My server requires authentication" box at bottom
- Click the Advanced tab
- Change the Outgoing mail (SMTP) Port from 25 to 587
- Click Apply, OK then Close
Outlook 2002/03
- Open Outlook 2002/03
- On the Tools menu, click E-mail Accounts
- Click View or change existing e-mail accounts
- Select your email account
- Click Change
- Click More Settings - Outgoing Server tab
- Check "My outgoing server (SMTP) requires authentication" - "use same settings as my incoming mail server" should be selected
- Click the Advanced tab
- Change the Outgoing mail (SMTP) Port from 25 to 587
- Click OK, Next, Finish
Apple Mail
- Open Mail
- On the Mail menu, click Preferences
- Select the Accounts tab
- Select your email account
- Click the "Server Settings" button under Outgoing Mail Server section
- Change the "Server port:" from 25 to 587
- Make sure "Authentication:" is set to Password and the username and password are completed
- Click OK and close the Preferences window
Entourage
- Open Entourage
- On the Tools menu, click Accounts.
- Select your email account
- Click Edit
- On the Account Settings tab, in the Sending Mail section:
- Click “Click here for advanced sending options.”
- Check "Override default SMTP port:" and change to 587
- Check "SMTP server requires authentication" - "use same settings as my incoming mail server" should be selected
- Click on small box on upper left corner to close window
- Click OK to save changes and close the Accounts window
Eudora
- Open Eudora
- Scroll down in the navigation pane and click Ports.
- View the Outgoing mail (SMTP) Port and change to 587
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