Some ISP's do not allow their customers access to outside SMTP servers. Some major ones are earthlink, netzero, juno, MSN, AOL along with many of the free internet access providers.
MSN's explanation - http://supportservices.msn.com/us/content/qanda/_email_port25.htm
If you continue to have problems, here are a few suggestions
1. Using Outlook (Express) checkmark the box that says \"Login to Outgoing Mail Server\"
1. Using Outlook (Express) checkmark the box that says \"Login to Outgoing Mail Server\"
- Go to Tools
- Go to Accounts
- double click on your account
- go to Servers
- Under Outgoing Mail Server make sure the following is check marked
- My server requires authorization
2. Use your ISP\'s SMTP server