File locked after sending it as attachment

Question

I am sending a file as an attachment:

            // Create  the file attachment for this e-mail message.
            Attachment data = new Attachment(filePa         


        

Answer 1

Here's another way to dispose of the Attachments, once you've finished with them...

//  Prepare the MailMessage "mail" to get sent out...
await Task.Run(() => smtp.Send(mail));

//  Then dispose of the Attachments.
foreach (Attachment attach in mail.Attachments)
{
    //  Very important, otherwise the files remain "locked", so can't be deleted
    attach.Dispose();
}