If I've queued up some email to be sent via the System.Net.Mail.SMTPClent, where can I find this mail? With the Windows SMTP Client, it's in the C:\inetpub\mailroot folder – is there a similar folder for the .NET client?
EDIT: Here's an example. If I turn off the outgoing SMTP server on my XP computer and then run an application that sends a dozen emails, they get queued up somewhere, since the .NET SMTPClient.Send call succeeds. A few hours later, I start the local SMTP server, and the mail leaves in a sudden flurry. Where is it in the meantime? The same behavior happens on my Vista desktop, though I have no local SMTP server – I can duplicate the functionality by blocking port 25 on the firewall, and then mail queues up somewhere. Where?
The reason for this question is that I want to re-enable the SMTP Service on a server I have, but I don't know what's been queued up in the meantime, and I want to make sure the queue is clean when I re-enable the service. That way, customers don't get really, really old queued emails all of the sudden.
EDIT: Clearly, I don't know what I'm talking about. When I do this on Vista:
Dim mm As New System.Net.Mail.MailMessage("email@example.com", "firstname.lastname@example.org", "Testing", "this is a test") Dim s As New System.Net.Mail.SmtpClient("localhost") s.DeliveryMethod = Mail.SmtpDeliveryMethod.PickupDirectoryFromIis s.Send(mm)
I get an exception because I don't have an IIS pickup folder. Changing it to "Mail.SmtpDeliveryMethod.Network" results in an immediate exception because I don't have an SMTP server running. I'll test this on server 2003, but I could have sworn that these both worked in the past. I'll do some more testing and modify the question if needed.