system.net.mail

Part of the application I'm working on for my client involves sending emails for events. Sometimes these are highly important. My client, and most of my client's clients, use Outlook, which has the ability to mark a mail message as High Importance. Now, I know it is callous to assume that all end users will be using the same interface, sp I am not. But considering you can send email from Outlook as High Importance even if the target is not necessarily reading through Outlook, that means that there is basically some data stored, somehow, that lets Outlook know if a particular message was

I wish to send an email, with a plain text and html version. The email needs an image to go with it (not one I can host somewhere else), it should be embedded if the client views it in html, and attached for the plain text view. Is this possible to do that would work in all common clients? The closest I have come is creating the image as an attachment (rather than a linked resource) then referencing it in the html with cid:filename.jpg. However this doesn't work in gmail (it doesn't display the image in the html). This code snippet works in outlook 2010 and gmail. I test the plain text email

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 roof. I'm not talking about mass emailing, just occasional emails. System.Net.Mail appears to be horribly broken. The SmtpClient does not issue the Quit command (it may be because Microsoft(R) is not interested in following specifications), therefore a connection is left open. Therefore, if someone tries to email before that connection finally closes, you can get errors from the SMTP Server about too

I am trying to send an email asp.net, using the System.Net.Mail.SmtpClient class. However I am getting the following exception message: The parameter 'addresses' cannot be an empty string. Parameter name: addresses This is my send email code: private void SendEmailUsingGmail(string toEmailAddress) { try { SmtpClient smtp = new SmtpClient(); smtp.Credentials = new NetworkCredential("keysketyyyy@gmail.com", "sdsdasd"); smtp.Port = 587; smtp.Host = "smtp.gmail.com"; smtp.EnableSsl = true; MailMessage message = new MailMessage(); message.From = new MailAddress("keysketyyy@gmail.com"); message.To

I've been using the System.Net namespace ever since we switched from .NET Framework 1.1 to the 3.5 framework, but there’s one thing that’s been puzzling me since. What's the difference between the Sender and the From properties in the MailMessage class? Are they both the same, and if not is there a reason to use Sender together with From ? For example: Using m As New System.Net.Mail.MailMessage() m.Sender = New System.Net.Mail.MailAddress("test@test.com", "Name here") m.From = New System.Net.Mail.MailAddress("test@test.com", "Name here") m.Subject = "Test" m.Body = "Test" Dim client As New

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 message = new MailMessage() { From = new MailAddress("someone@somewhere.com", "Service"), BodyEncoding = Encoding.UTF8, Body = body, IsBodyHtml = true, ReplyTo = new MailAddress("do.not.reply@somewhere.com"), SubjectEncoding = Encoding.UTF8 }; foreach (string emailAddress in addresses) { message.To.Add(new MailAddress(emailAddress.Trim(), "Person")); } message.Subject = subject; I'd like to emphasize