Error 550 Relaying not allowed

This error message is coming from the mail server, not from Outlook Express. This error means that the SMTP (outgoing) mail server did not recognize you as an authorized user and rejected your e-mail message. Most ISPs (ISP stands for Internet Service Provider, and this includes GCI) configure their mail servers to recognize only those computer IP addresses that are on an accepted list. If you use multiple ISPs, or just switched from another ISP, you are likely to encounter this problem. The solution is to change setting of the SMTP server for that mail account under your e-mail application:

For Microsoft Outlook Express:

• From the Inbox
• Click on from Tools from the menu bar
• Click on Accounts
• Click on Properties
• Click on Servers
• Change the SMTP (outgoing mail) to : smtp.gci.net.

For Netscape versions 4.X you will:

• Click on Edit from the menu bar-
• Click on Preferences
• Click the + sign next to mail/newsgroups
• Then click Mail Servers-verify the Outgoing Mail Server name is : smtp.gci.net.

For Netscape versions 6.X you will:

• Click Tasks
• Then Mail
• This will launch the mail program-
• Then click on Edit
• Then Mail/News account settings-
• Verify your Outgoing Mail Server is: smtp.gci.net.

In all cases, make sure the words smtp.gci.net are lower case.