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POPermission issues when trying to send email via SMTP from ASP.NET page
 

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    <p>I have done this before without any issue but now I don't know what's wrong. I have a web page with a button for email which I want to send some data to email addresses with.</p> <p>I asked our web hosting company for server details and the response I got was:</p> <pre><code>"You can use the following details for mail. Incoming mail server: mail.ourSite.com Outgoing mail server: mail.ourSite.com Username and password are the email address and password associated with the email address. " </code></pre> <p>I am not sure about the last line but I created a new email address in the web host's control panel.</p> <p>The code I use is:</p> <pre><code>// instantiate a new mail definition and load an html // template into a string which I replace values in // then the rest of the code below md.Subject = String.Format("{0} {1} {2}", emailSubject, firstName, lastName); MailMessage msg = md.CreateMailMessage(emailAddress, replacements, emailBody, new Control()); md.IsBodyHtml = true; SmtpClient sc = new SmtpClient(emailServer); sc.Credentials = new NetworkCredential(emailUsername, emailPassword); try { sc.Send(msg); } </code></pre> <p>emailServer - mail.ourSite.com (dummy value in this post) emailUsername - the email address I created in the control panel emailPassword - the password for the email above</p> <p>The error I have is that when I send emails to other domains than our own I get </p> <pre><code>"Bad sequence of commands. The server response was: This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server." </code></pre> <p>When I email to an address within our host then it works fine.</p> <p>The support is not very supportive so I am asking here what you might think the problem could be? I find it strange that I use the password for an email address I created, should it really be like that?</p>
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