CODEWITHSUNDEEP
c#winformssystem.net.mail
James Hay
James Hay

Reputation: 7315

Getting output from C# mail sending

I'm new to doing this sort of thing but I want to get the output from my application which sends mail. For example I want to be able to know if

I know how to send the mail using System.Net.Mail but is there any way to get this information ?

EDIT:

In the link David Stratton posted you can see the log and it receives the status codes like

Is there a way to get these events live so that as each one comes I can display them?

Upvotes: 1

Views: 1833

Answers (3)

David
David

Reputation: 73564

If you want to create a log file based on the SMTP session, you can modify your .config file to do this automatically. Instructions here (archive.org backup). Same instructions can also be found at this SO answer.

Upvotes: 5

Davide Piras
Davide Piras

Reputation: 44605

I think that if at any point any of the 3 steps you mentioned would fail you would get an exception which you can catch with try/catch.

Critical point is probably the last one because once you queue the email in the SMTP server's queue you have no exceptions but it could still happen the email is not sent.

Upvotes: 1

user596075
user596075

Reputation:

Put your SmtpClient.Send() call in a try/catch block and catch the below errors.

ArgumentNullException

  • message is Nothing.

InvalidOperationException

  • This SmtpClient has a SendAsync call in progress.
  • MailMessage.From is Nothing.
  • There are no recipients specified in MailMessage.To, MailMessage.CC, and MailMessage.Bcc properties.
  • DeliveryMethod property is set to Network and Host is Nothing.
  • DeliveryMethod property is set to Network and Host is equal to the empty string ("").
  • DeliveryMethod property is set to Network and Port is zero, a negative number, or greater than 65,535.

ObjectDisposedException

  • This object has been disposed.

SmtpException

  • The connection to the SMTP server failed.
  • Authentication failed.
  • The operation timed out.
  • EnableSsl is set to true but the DeliveryMethod property is set to SpecifiedPickupDirectory or PickupDirectoryFromIis.
  • EnableSsl is set to true, but the SMTP mail server did not advertise STARTTLS in the response to the EHLO command.

SmtpFailedRecipientsException

  • The message could not be delivered to one or more of the recipients in MailMessage.To, MailMessage.CC, or MailMessage.Bcc.

Reference: http://msdn.microsoft.com/en-us/library/swas0fwc.aspx

Upvotes: 6

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