C#发送邮件

一、先定义邮件类型

/// <summary>
/// 邮件
/// </summary>
public class EmailEntity
{
/// <summary>
/// 发送人
/// </summary>
public string mailSender { get; set; }

/// <summary>
/// 收件人
/// </summary>
public string[] mailToArray { get; set; }

/// <summary>
/// 抄送
/// </summary>
public string[] mailCcArray { get; set; }

/// <summary>
/// 标题
/// </summary>
public string mailSubject { get; set; }

/// <summary>
/// 正文
/// </summary>
public string mailBody { get; set; }

/// <summary>
/// 发件人密码
/// </summary>
public string mailPwd { get; set; }

/// <summary>
/// SMTP邮件服务器
/// </summary>
public string host { get; set; }

/// <summary>
/// 正文是否是html格式
/// </summary>
public bool isbodyHtml { get; set; }

/// <summary>
/// 附件
/// </summary>
public string[] attachmentsPath { get; set; }
/// <summary>
/// 是否发送成功
/// </summary>
/// <returns></returns>
public bool Send()
{
//使用指定的邮件地址初始化MailAddress实例
MailAddress maddr = new MailAddress(mailSender);
//初始化MailMessage实例
MailMessage myMail = new MailMessage();
//向收件人地址集合添加邮件地址
if (mailToArray != null)
{
for (int i = 0; i < mailToArray.Length; i++)
{
myMail.To.Add(mailToArray[i].ToString());
}
}

//向抄送收件人地址集合添加邮件地址
if (mailCcArray != null)
{
for (int i = 0; i < mailCcArray.Length; i++)
{
myMail.CC.Add(mailCcArray[i].ToString());
}
}
//发件人地址
myMail.From = maddr;

//电子邮件的标题
myMail.Subject = mailSubject;

//电子邮件的主题内容使用的编码
myMail.SubjectEncoding = Encoding.UTF8;

//电子邮件正文
myMail.Body = mailBody;

//电子邮件正文的编码
myMail.BodyEncoding = Encoding.Default;

myMail.Priority = MailPriority.High;

myMail.IsBodyHtml = isbodyHtml;

//在有附件的情况下添加附件
try
{
if (attachmentsPath != null && attachmentsPath.Length > 0)
{
Attachment attachFile = null;
foreach (string path in attachmentsPath)
{
attachFile = new Attachment(path);
myMail.Attachments.Add(attachFile);
}
}
}
catch (Exception err)
{
///写日志
}

SmtpClient smtp = new SmtpClient();
//指定发件人的邮件地址和密码以验证发件人身份
smtp.Credentials = new System.Net.NetworkCredential(mailSender, mailPwd);

//QQ邮箱使用ssl加密
//smtp.EnableSsl = true;
smtp.EnableSsl = false;
//设置SMTP邮件服务器
smtp.Host = host;

try
{
//将邮件发送到SMTP邮件服务器
smtp.Send(myMail);
return true;

}
catch (System.Net.Mail.SmtpException ex)
{
///写日志
return false;
}

}
}

二、调用实例

///附件路径

string   path = @"C:\Users\Adam\Desktop\Excel\test201803";

string[] attachmentsPath = new string[] { path };///可以发送多个附件

EmailEntity email = new EmailEntity();
email.mailSender = "发送人邮箱地址";
email.mailPwd = "发送人邮箱密码";
email.mailSubject = "邮件标题";
email.mailBody = "邮件内容";
email.isbodyHtml = false; //是否是HTML
email.attachmentsPath = attachmentsPath;///附件地址
email.host = "smtp.mxhichina.com";//如果是QQ邮箱则：smtp:qq.com,依次类推 smtp.163.com 阿里云 smtp.mail.aliyun.com 阿里企业邮箱 smtp.mxhichina.com
email.mailToArray = new string[] { SendEmail };//接收者邮件集合
//email.mailCcArray = new string[] { "******@qq.com" };//抄送者邮件集合

if (email.Send())
{
Console.WriteLine("服务状态 : 发送邮件成功，请注意查看!");
}
else
{
Console.WriteLine("服务状态 : 发送邮件失败!");
}