Hi,

I have a web application that's sending mail through a SMTP server lets say 'server1'. Now I wanted to change the smtp server to another server say 'server2'. So when I do that it throws a System.Runtime.InteropServices.COM Exception saying 'The server rejected one or more recipient addresses'. When I change back the servername to 'server1' it works fine.

Neither server1 nor server2 is the server hosting the web application.

Here is the code:

System.Web.Mail.SmtpMail.SmtpServer="smtp.server1. com";
System.Web.Mail.SmtpMail.Send("[email protected] ", "[email protected]", "subject", "body");

In the above code if I replace 'smtp.server1.com' with lets say 'smtp.server2.com' and '[email protected]' with '[email protected]' it gives me an error.

Now I know that both smtp.server1.com and smtp.server2.com are reachable since I can send mail through these accounts configured in MS Outlook.

Can anyone please help? Also do I need to pass my username and password to logon to these servers to send mail through them? If yes then how do I do that? and how come the first server doesnt require this sort of authentication?

Thank you in advance.
qadeer

Is server1 and 2 on the same network?

No they are on different networks.. infact they are mail servers of two differnt ISP's...

Dear Qadeer I think there is the configration problem with server1 and server2 or they dont support SMTP. For this you can contact with server administrator for this

Cheers











Love 4 all

Is there an artical somewhere on how to have a windows form application send email? I am having a hard time figuring it out via the help docs.

Thanks

Ray