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POSending e-mail from a Custom SQL Server Reporting Services Delivery Extension
 

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    <p>I've developed my own delivery extension for Reporting Services 2005, to integrate this with our SaaS marketing solution.</p> <p>It takes the subscription, and takes a snapshot of the report with a custom set of parameters. It then renders the report, sends an e-mail with a link and the report attached as XLS.</p> <p>Everything works fine, until mail delivery...</p> <p>Here's my code for sending e-mail:</p> <pre><code> public static List&lt;string&gt; SendMail(SubscriptionData data, Stream reportStream, string reportName, string smptServerHostname, int smtpServerPort) { List&lt;string&gt; failedRecipients = new List&lt;string&gt;(); MailMessage emailMessage = new MailMessage(data.ReplyTo, data.To); emailMessage.Priority = data.Priority; emailMessage.Subject = data.Subject; emailMessage.IsBodyHtml = false; emailMessage.Body = data.Comment; if (reportStream != null) { Attachment reportAttachment = new Attachment(reportStream, reportName); emailMessage.Attachments.Add(reportAttachment); reportStream.Dispose(); } try { SmtpClient smtp = new SmtpClient(smptServerHostname, smtpServerPort); // Send the MailMessage smtp.Send(emailMessage); } catch (SmtpFailedRecipientsException ex) { // Delivery failed for the recipient. Add the e-mail address to the failedRecipients List failedRecipients.Add(ex.FailedRecipient); } catch (SmtpFailedRecipientException ex) { // Delivery failed for the recipient. Add the e-mail address to the failedRecipients List failedRecipients.Add(ex.FailedRecipient); } catch (SmtpException ex) { throw ex; } catch (Exception ex) { throw ex; } // Return the List of failed recipient e-mail addresses, so the client can maintain its list. return failedRecipients; } </code></pre> <p>Values for SmtpServerHostname is localhost, and port is 25.</p> <p>I veryfied that I can actually send mail, by using Telnet. And it works.</p> <p><strong>Here's the error message I get from SSRS:</strong></p> <p>ReportingServicesService!notification!4!08/28/2008-11:26:17:: Notification 6ab32b8d-296e-47a2-8d96-09e81222985c completed. Success: False, Status: Exception Message: Failure sending mail. Stacktrace: at MyDeliveryExtension.MailDelivery.SendMail(SubscriptionData data, Stream reportStream, String reportName, String smptServerHostname, Int32 smtpServerPort) in C:\inetpub\wwwroot\CustomReporting\MyDeliveryExtension\MailDelivery.cs:line 48 at MyDeliveryExtension.MyDelivery.Deliver(Notification notification) in C:\inetpub\wwwroot\CustomReporting\MyDeliveryExtension\MyDelivery.cs:line 153, DeliveryExtension: My Delivery, Report: Clicks Development, Attempt 1 ReportingServicesService!dbpolling!4!08/28/2008-11:26:17:: NotificationPolling finished processing item 6ab32b8d-296e-47a2-8d96-09e81222985c</p> <p><strong>Could this have something to do with Trust/Code Access Security?</strong></p> <p>My delivery extension is granted full trust in rssrvpolicy.config:</p> <pre><code> &lt;CodeGroup class="UnionCodeGroup" version="1" PermissionSetName="FullTrust" Name="MyDelivery_CodeGroup" Description="Code group for MyDelivery extension"&gt; &lt;IMembershipCondition class="UrlMembershipCondition" version="1" Url="C:\Program Files\Microsoft SQL Server\MSSQL.2\Reporting Services\ReportServer\bin\MyDeliveryExtension.dll" /&gt; &lt;/CodeGroup&gt; </code></pre> <p>Could trust be an issue here?</p> <p>Another theory: SQL Server and SSRS was installed in the security context of Local System. Am I right, or is this service account restricted access to any network resource? Even its own SMTP Server?</p> <p>I tried changing all SQL Server Services logons to Administrator - but still without any success.</p> <p>I also tried logging onto the SMTP server in my code, by proviiding: NetworkCredential("Administrator", "password") and also NetworkCredential("Administrator", "password", "MyRepServer")</p> <p>Can anyone help here, please?</p>
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