"VK" <vk@vk.com> wrote in message
news:%232dN8dMVFHA.1384@TK2MSFTNGP09.phx.gbl...
> Folks,
>
> Our ASP application has been sending emails using SMTP server for almost
> 2-3 years now. All of a sudden we keep receiving these random
> undelveriables, which doesn't make sense since this email address
> exists, from our previous experince.
>
> An example:
> ====
> Your message did not reach some or all of the intended recipients.
>
> Subject: <subject matter>
> Sent: 4/19/2005 4:22 PM
>
> The following recipient(s) could not be reached:
> joe@test.com on 4/19/2005 4:22 PM
> You do not have permission to send to this recipient. For
> assistance, contact your system administrator.
> <server_name> #5.7.1 smtp;550 5.7.1 Unable to relay for
> joe@test.com>
> ====
>
> Changed the server name, email address only, but you get the basic
> picture.
>
> We have also enabled smart host on server that has SMTP installed.
> Our SMPT server is W2K and Exchange server is Windows 2003.
>
> Any help is much appreciated.
>
> Thanks.
>
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