Re: Emailing Problem

kara hewett <[email protected]> Sat, 19 Jan 2008 20:10:39 -0500
Newsgroups gmane.comp.windows.devel.dotnet.winforms
Message-ID <[email protected]>
This problem seems like an authentication issue.  Your smtp server
allows you to relay messages for those domains under its authority.
It accepts any message sent to mydomain.com but requires you to
authenticate with it before it will allow sending to hotmail.com for
example.

For this reason in your pop3 account settings tell outlook to
authenticate with the outgoing server before sending any emails.

The internal network you authenticates with the smtp virtual server by
using windows integrated authentication which is not possible from
outside of your network.



On Jan 19, 2008 7:48 PM, Steve Abaffy <[email protected]> wrote:
> When I try to send an email from my code in the Development running debug it
> works fine, but when I try to send the same email from the production
> version I get an error that says Cannot relay for "Email Address". This only
> occurs on my machine, the other machines in the shop will all send the email
> just fine from the production version of the code? We are using the Sever
> 2003 SMTP for email.
> Any insight would be appreciated.
>
> Thanks
>