W2K3 Error 550 Relaying Denied when sending e-mail

Hi,

With W2003 Server, I can't send e-mails using my usual ISP
and Eudora (or any other mail software).

The mail server responds with an error 550, telling that
relaying is denied.

The same Eudora configuration works with NT and XP, W2003
must be doing something making my ISP think that I'm not
connected to the Internet through him.

Any help to solve this problem would be appreciated.

Hi,

Do you use Windows 2003 as SMTP service? If so open Internet Information
Service MMC and right click on Default SMTP service and select properties.
Click on Access and select Relaying. Make sure that "Only the list below" is
selected and click on Add and e.g. under Group of Computers enter your
private IPs (e.g. 10.10.1.1 mask 255.255.0.0 -- use IPs from your network).
Close all windows and restart SMTP service

net stop smtpsvc & net start smtpsvc

Note. Any computer that has IP in range that you entered will be able to
relay e-mail from any to any domain.

I hope this helps,

Mike

"Robert enaroya" <(E-Mail Removed)> wrote in message
news:9b1001c486b9$e0cf4bd0$(E-Mail Removed)...
> Hi,
>
> With W2003 Server, I can't send e-mails using my usual ISP
> and Eudora (or any other mail software).
>
> The mail server responds with an error 550, telling that
> relaying is denied.
>
> The same Eudora configuration works with NT and XP, W2003
> must be doing something making my ISP think that I'm not
> connected to the Internet through him.
>
> Any help to solve this problem would be appreciated.