如何在 C# 中使用 MimeKit 发送 email

Question

Hi everyone I'm trying to send an email using the MimeKit but I'm trying to attach a.pdf file I have some problems:

This is how I'm trying to send it:

 private bool EnviarMail(string file, string from, string to, string subject, string content, string name)
    {
        bool estado = false;

        try
        {
            var mensaje = new MimeMessage();
            mensaje.From.Add(new MailboxAddress(name, from));
            mensaje.To.Add(new MailboxAddress("", to));
            mensaje.Subject = subject;

            var bodyBuilder = new BodyBuilder();
            bodyBuilder.HtmlBody = content;
            bodyBuilder.Attachments.Add(file);
            mensaje.Body = bodyBuilder.ToMessageBody();

            using (var client = new SmtpClient("myHost", myPort))
            {
                client.Send(mensaje);    
            }

            estado = true;
            return estado;
        }
        catch (Exception ex)
        {
            return estado;
        }
    }

But I have this error on client.send(mensaje) line. It says:

Argument 1: cannot convert from 'MimeKit.MimeMessage' to ' System.Net.Mail.MailMessage'

How can I send this email correctly?

I tried what is was told here: Can I send files via email using MailKit?

But I couldn't do it for same error

Answer 1

The error indicates that you are using the wrong SMTP client!

You should be using the one that comes with MimeKit ( MailKit.Net.Smtp.SmtpClient ) and not the one in .NET ( System.Net.Mail.SmtpClient )

Note that MimeKit and MailKit work hand-in-hand with MimeKit devoted to the parsing and handling of messages. Where as MailKit concerns the.network aspects of sending and receiving messages.