I'm not very familiar with wwIPStuff, but you have to tell it what SMTP server to use. It is the cMailServer property of the wwIPStuff class. You can find out what SMTP server you currently use inside of Outlook: Goto Tools|Accounts|Properties|Server Tab. You can to use that same SMTP server with wwIPStuff.

Can you show the code you are using to send the mail via wwIPStuff?

>It DOES work when sending to non-juno addresses. How do I check my SMTP server? Is there a setting I have to change? I know so little about this area...
>
>>Hello Elyse,
>>
>>Error 550 means that the SMTP server rejected your connection. What SMTP server are you using? Do you have permission to use it (meaning, is it the one your ISP or IT dept. assigned to you)? Are you saying that it did work when sending to non-juno.com email addresses?
>>
>>>I tried the wwIPStuff, which seems to work, but when I try to send mail to a juno.com address I get the following error message - "550 not local host juno.com, not a gateway". What does that mean and what can I do about it?
>>>