Why does this code: MailMessage mm = new MailMessage(); Throw this exception: System.Security.Cryptography.CryptographicException was caught Message=The handle is invalid. Source=mscorlib Stac...

MVC3, VB.NET. I have a function in my app that is supposed to use a html file's contents for the email body. However what I have so far is failing at the mail.body = file.readalltext(_body) line.. ...

When I sent a mail using System.Net.Mail, it seems that the messages do not send immediately. They take a minute or two before reaching my inbox. Once I quit the application, all of the messages ar...

The SmtpClient send method returns void. Is there any way to get the server response? Do I just assume it was successful unless it throws an exception? The class I'm referring to... http://msdn.m...

I have a simple C# app that send SMTP emails (using System.Net.Mail classes). After sending (emailing) a MailMessage object I want to iterate through the list of the attachments and delete the orig...

This seems to be pretty straight forward. I need to send email from some ASP.NET applications. I need to do this consistently without strange errors and without CPU utilization going through the ro...

Is it me or is there a bug in the MailAddress class in System.Net.Mail? This code will always throw an excpetion: MailMessage mail = new MailMessage(); mail.From = new MailAddress("[email pr...

_data is a byte[] array of Attachment data. When I'm doing this: var ms = new MemoryStream(_data.Length); ms.Write(_data,0,_data.Length); mailMessage.Attachments.Add(new Attachment(ms,...

I use this class to send mails trough a gmail account: public class GmailAccount { public string Username; public string Password; public string DisplayName; public string Address { get {...

I'm trying to use the code below to send messages via System.Net.Mail and am sometimes getting subjects like '=?utf-8?B?W3AxM25dIEZpbGV...' (trimmed). This is the code that's called: MailMessage m...