C#发送邮件的操作类

注意：微软465端口被占用发送不能邮件，请使用25或者587

class MailService
    {
        private string mailHost = "";
        private string mailFromName = "";
        private string mailUsername = "";
        private string mailPassword = "";
        private bool mailSMTPSecure = true;
        private int mailPort = 25;
        public bool sendHtml(string to, String cc, string bcc, string subject, string body, string[] attachments, string from)
        {
            try
            {
                
                SmtpClient SmtpClient = new SmtpClient();
                SmtpClient.Host = mailHost;
                SmtpClient.Port = mailPort;
                SmtpClient.UseDefaultCredentials = false;
                SmtpClient.EnableSsl = mailSMTPSecure;
                SmtpClient.Credentials = new NetworkCredential(mailUsername, mailPassword);
                SmtpClient.DeliveryMethod = SmtpDeliveryMethod.Network;
                SmtpClient.Send(getSendEmailArray(to,cc,bcc, subject, body, attachments, from));
                return true;
            }
            catch (Exception e) 
            {
                Console.WriteLine(e.ToString());
            }

            return false;
        }

        private MailMessage getSendEmailArray(string to, String cc, string bcc, string subject, string body, string[] attachments, string from)
        {
            string[] fromArr = new string[] { mailUsername, mailFromName };
            if (from == mailUsername)
            {
                fromArr = new string[] { mailUsername, mailFromName };
            }
            MailMessage mailMessage = new MailMessage();
            if (!string.IsNullOrEmpty(to))
            {
                string[] toEmails = to.Split(';');
                foreach (string toEmail in toEmails)
                {
                    if (string.IsNullOrEmpty(toEmail))
                    {
                        continue;
                    }
                    mailMessage.To.Add(toEmail);
                }
            }

            if (!string.IsNullOrEmpty(cc))
            {
                string[] ccEmails = cc.Split(';');
                foreach (string ccEmail in ccEmails)
                {
                    if (string.IsNullOrEmpty(ccEmail))
                    {
                        continue;
                    }
                    mailMessage.CC.Add(ccEmail);
                }
            }

            if (!string.IsNullOrEmpty(bcc))
            {
                string[] bccEmails = bcc.Split(';');
                foreach (string bccEmail in bccEmails)
                {
                    if (string.IsNullOrEmpty(bccEmail))
                    {
                        continue;
                    }
                    mailMessage.Bcc.Add(bccEmail);
                }
            }

            foreach (string attachmentd in attachments)
            {
                if (!File.Exists(@attachmentd))
                {
                    continue;
                }
                mailMessage.Attachments.Add(new Attachment(attachmentd));
            }

            mailMessage.From = new MailAddress(fromArr[0], fromArr[1]);
            mailMessage.Subject = subject;
            mailMessage.Body = body;

            return mailMessage;
        }
    }