MailAddress类有两个参数
第1个参数：发送者的邮箱
第2个参数：发送者的签名
示例：
MailMessage message = new MailMessage();
message.From = new MailAddress(sender, signature);
message.To.Add(recipient);
完整代码：(参照动软代码生成的MailSend.cs)
public static void Send(string server, string sender, string signature, string recipient, string subject, string body, bool isBodyHtml, Encoding encoding, bool isAuthentication, params string[] files)
{
SmtpClient smtpClient = new SmtpClient(server);
//MailMessage message = new MailMessage(sender, recipient);
MailMessage message = new MailMessage();
message.From = new MailAddress(sender, signature);
message.To.Add(recipient);
message.IsBodyHtml = isBodyHtml;
message.SubjectEncoding = encoding;
message.BodyEncoding = encoding;
message.Subject = subject;
message.Body = body;
message.Attachments.Clear();
if (files != null && files.Length != 0)
{
for (int i = 0; i < files.Length; ++i)
{
Attachment attach = new Attachment(files[i]);
message.Attachments.Add(attach);
}
}
if (isAuthentication == true)
{
smtpClient.Credentials = new NetworkCredential(SmtpConfig.Create().SmtpSetting.User, SmtpConfig.Create().SmtpSetting.Password);
}
smtpClient.Send(message);
}