C#实现SMTP邮件发送程序实例

通常来说邮件发送功能在网站应用程序中经常会用到，包括大家经常看到的博客，在添加评论后，系统会自动发送邮件通知到我邮箱的，把系统发送邮件的功能整理了下，本文展示了一个客户端Demo，希望对有需要的朋友有所帮助。运行效果如下图所示：

核心代码如下：

using System;

using System.Net;

using System.Net.Mail;

using System.Text;

namespace HC.Email

{

    /// <summary>

    ///     整站邮件服务类

    /// </summary>

    public class EmailService

    {

        /// <summary>

        ///     发送邮件

        /// </summary>

        /// <param name="mailTo">收件人

        /// <param name="subject">主题

        /// <param name="body">内容

        /// <returns></returns>

        public static bool Send(string mailTo, string subject, string body)

        {

            return Send(new[] {mailTo}, null, subject, body, true, null);

        }

        /// <summary>

        ///     发送邮件

        /// </summary>

        /// <param name="mailTo">收件人

        /// <param name="subject">主题

        /// <param name="body">内容

        /// <returns></returns>

        public static bool Send(string[] mailTo, string subject, string body)

        {

            return Send(mailTo, null, subject, body, true, null);

        }

 

        /// <summary>

        ///     发送邮件

        /// </summary>

        /// <param name="mailTo">收件人

        /// <param name="subject">主题

        /// <param name="body">内容

        /// <param name="attachmentsPath">附件

        /// <returns></returns>

        public static bool Send(string[] mailTo, string subject, string body, string[] attachmentsPath)

        {

            return Send(mailTo, null, subject, body, true, attachmentsPath);

        }

 

        /// <summary>

        ///     发送邮件

        /// </summary>

        /// <param name="mailTo">收件人

        /// <param name="mailCcArray">抄送

        /// <param name="subject">主题

        /// <param name="body">内容

        /// <param name="isBodyHtml">是否Html

        /// <param name="attachmentsPath">附件

        /// <returns></returns>

        public static bool Send(string[] mailTo, string[] mailCcArray, string subject,string body, bool isBodyHtml,

                                string[] attachmentsPath)

        {

            try

            {

                var config = ConfigHelper.GetConfig<emailconfig>();

                if (string.IsNullOrEmpty(config.Host) ||string.IsNullOrEmpty(config.UserName) ||

                    string.IsNullOrEmpty(config.Port) ||string.IsNullOrEmpty(config.Password))

                {

                    //todo:记录日志

                    return false;

                }

                var @from = new MailAddress(config.MailFrom); //使用指定的邮件地址初始化MailAddress实例

                var message = new MailMessage(); //初始化MailMessage实例

                //向收件人地址集合添加邮件地址

                if (mailTo != null)

                {

                    foreach (string t in mailTo)

                    {

                        message.To.Add(t);

                    }

                }

 

                //向抄送收件人地址集合添加邮件地址

                if (mailCcArray != null)

                {

                    foreach (string t in mailCcArray)

                    {

                        message.CC.Add(t);

                    }

                }

                //发件人地址

                message.From = @from;

 

                //电子邮件的标题

                message.Subject = subject;

 

                //电子邮件的主题内容使用的编码

                message.SubjectEncoding = Encoding.UTF8;

 

                //电子邮件正文

                message.Body = body;

 

                //电子邮件正文的编码

                message.BodyEncoding = Encoding.Default;

                message.Priority = MailPriority.High;

                message.IsBodyHtml = isBodyHtml;

 

                //在有附件的情况下添加附件

                if (attachmentsPath != null && attachmentsPath.Length > 0)

                {

                    foreach (string path in attachmentsPath)

                    {

                        var attachFile = new Attachment(path);

                        message.Attachments.Add(attachFile);

                    }

                }

                try

                {

                    var smtp = new SmtpClient

                        {

                            Credentials = new NetworkCredential(config.UserName, config.Password),

                            Host = config.Host,

                            Port = Convert.ToInt32(config.Port)

                        };

 

                    //将邮件发送到SMTP邮件服务器

                    smtp.Send(message);

                    //todo:记录日志

                    return true;

                }

                catch (SmtpException ex)

                {

                    //todo:记录日志

                    return false;

                }

            }

            catch (SmtpException ex)

            {

                //todo:记录日志

                return false;

            }

        }

    }

}

完整实例代码点击此处本站下载。

希望本文所述对大家的C#程序设计有所帮助