/// <summary>
/// 发送邮件并返回状态信息
/// </summary>
/// <returns>状态信息</returns>
public MailState Send()
{
MailConfig mailConfig = ConfigHelper.Get <MailConfig>();
MailState mailcode = ValidMail(mailConfig);
if (mailcode == MailState.None)
{
MimeMessage mailMessage = GetMailMessage(mailConfig);
try
{
using (var client = new SmtpClient())
{
//连接到Smtp服务器
client.Connect(mailConfig.MailServer, mailConfig.Port, mailConfig.EnabledSsl);
//登陆
client.Authenticate(mailConfig.MailServerUserName, mailConfig.MailServerPassWord);
//发送
client.Send(mailMessage);
//断开
client.Disconnect(true);
}
mailcode = MailState.Ok;
}
catch (SmtpCommandException exception)
{
switch (exception.StatusCode)
{
case SmtpStatusCode.MailboxNameNotAllowed:
mailcode = MailState.UserNameOrPasswordError;
break;
default:
mailcode = MailState.SendFailure;
break;
}
if (exception.InnerException is IOException)
{
mailcode = MailState.AttachmentSizeLimit;
}
else if (exception.InnerException is WebException)
{
if (exception.InnerException.InnerException == null)
{
mailcode = MailState.SmtpServerNotFind;
}
else if (exception.InnerException.InnerException is SocketException)
{
mailcode = MailState.PortError;
}
}
else
{
mailcode = MailState.NonsupportSsl;
}
}
}
this.Msg = GetMailStateInfo(mailcode);
return(mailcode);
}
/// <summary>
/// 验证邮件配置信息并返回邮件状态信息
/// </summary>
/// <param name="mailSettings">邮件配置文件对象</param>
/// <returns>邮件状态信息</returns>
private MailState ValidMail(MailConfig mailSettings)
{
MailState none = MailState.None;
if (string.IsNullOrEmpty(mailSettings.MailFrom) || string.IsNullOrEmpty(mailSettings.MailServer))
{
return(MailState.MailConfigIsNullOrEmpty);
}
if (this.MailToAddressList == null)
{
return(MailState.NoMailToAddress);
}
if (string.IsNullOrEmpty(this.Subject))
{
return(MailState.NoSubject);
}
if (!string.IsNullOrEmpty(this.AttachmentFilePath) && !System.IO.File.Exists(this.AttachmentFilePath))
{
none = MailState.FileNotFind;
}
return(none);
}
/// <summary>
/// 得到电子邮件对象
/// </summary>
/// <param name="mailSettings">邮件配置文件类</param>
/// <returns>MailMessage对象</returns>
private MimeMessage GetMailMessage(MailConfig mailSettings)
{
MimeMessage message = new MimeMessage();
//收件人地址
foreach (MailboxAddress address in this.MailToAddressList)
{
message.To.Add(address);
}
//抄送人地址
if (this.MailCopyToAddressList != null)
{
foreach (MailboxAddress address2 in this.MailCopyToAddressList)
{
message.Cc.Add(address2);
}
}
//回复地址
if (this.ReplyTo != null)
{
message.ReplyTo.Add(this.ReplyTo);
}
//发件人地址
if (!string.IsNullOrEmpty(this.FromName))
{
message.From.Add(new MailboxAddress(FromName, mailSettings.MailFrom));
}
else
{
message.From.Add(new MailboxAddress(mailSettings.MailFrom));
}
message.Priority = this.Priority;
message.Subject = this.Subject;
//添加正文内容
TextPart body;
if (IsBodyHtml)
{
body = new TextPart(TextFormat.Html);
}
else
{
body = new TextPart(TextFormat.Plain);
}
body.SetText(Encoding.UTF8, MailBody);
var multipart = new Multipart("mixed");
multipart.Add(body);
//添加附件
if (!string.IsNullOrWhiteSpace(AttachmentFilePath))
{
//生产一个绝对路径
var absolutePath = FileHelper.MapPath(AttachmentFilePath);
//附件
var attachment = new MimePart()
{
//读取文件(只能用绝对路径)
Content = new MimeContent(File.OpenRead(absolutePath), ContentEncoding.Default),
//ContentObject = new ContentObject(File.OpenRead(absolutePath), ContentEncoding.Default),
ContentDisposition = new ContentDisposition(ContentDisposition.Attachment),
ContentTransferEncoding = ContentEncoding.Base64,
//文件名字
FileName = Path.GetFileName(absolutePath)
};
//添加附件
multipart.Add(attachment);
}
message.Body = multipart;
return(message);
}