C#使用Jmail实现邮件的接收与发送详细示例

本文使用很出名的jmail来发送与接收邮件做个详细示例，不使用.net内置的发送程序，以前在asp时代都是使用jmail组件来发送邮件的。

1、下载Jmail组件，并安装，将jmail.dll引用到工程中：

2、定义一个实体保存接受邮件的基本信息，为了简单起见，只定义了四个字段：

MailInfo

class MailInfo
{
public string FromMail
{
get;
set;
}
public string MailSubject
{
get;
set;
}
public string MailMessage
{
get;
set;
}
public List<string> atts
{
get;
set;
}
}

3、邮件发送代码：

jmail.Message MailObj = new jmail.MessageClass();
MailObj.From = parentform.txtMail.Text; //发件人的地址
MailObj.Logging = true;
MailObj.MailServerUserName = parentform.txtMail.Text; //发件人用户名
MailObj.MailServerPassWord = parentform.txtPassWord.Text; //服务器验证
MailObj.HTMLBody = txtMessage.Text;
MailObj.Charset = "gb2312";
MailObj.Subject = txtSubject.Text;
MailObj.FromName = parentform.txtMail.Text;
MailObj.AddRecipient(parentform.txtMail.Text, "User", "A"); //添加接收人
MailObj.Priority = 3;
if (txtAtt.Text != "")
{
MailObj.AddAttachment(txtAtt.Text, false, "image/jpg");
}
try
{
bool bool_OK = MailObj.Send(parentform.txtServer.Text, false);
if (bool_OK == true)
MessageBox.Show("发送成功！");
if (bool_OK == false)
MessageBox.Show("发送失败！");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}

4、邮件接收代码：

///建立收邮件对象
jmail.POP3Class popMail = new POP3Class();
///建立邮件信息接口
jmail.Message mailMessage;
///建立附件集接口
jmail.Attachments atts;
///建立附件接口
jmail.Attachment att;
try
{
popMail.Connect(parentform.txtMail.Text.Trim(), parentform.txtPassWord.Text.Trim(), parentform.txtServer.Text.Trim(), Convert.ToInt32(parentform.txtPoint.Text.Trim()));
lsvMail.View = View.Details;
// Allow the user to edit item text.
lsvMail.LabelEdit = false;
// Allow the user to rearrange columns.
lsvMail.AllowColumnReorder = true;
// Select the item and subitems when selection is made.
lsvMail.FullRowSelect = true;
// Display grid lines.
lsvMail.GridLines = true;
// Sort the items in the list in ascending order.
///如果收到邮件
if (0 < popMail.Count)
{
///根据取到的邮件数量依次取得每封邮件
for (int i = 1; i <= popMail.Count; i++)
{
///取得一条邮件信息
mailMessage = popMail.Messages[i];
///取得该邮件的附件集合
atts = mailMessage.Attachments;
///设置邮件的编码方式
mailMessage.Silent = true;
mailMessage.EnableCharsetTranslation = true;
mailMessage.ContentTransferEncoding = "Base64";
mailMessage.Encoding = "Base64";
mailMessage.Charset = "gb2312";
mailMessage.ContentType = "text/html";
mailMessage.ISOEncodeHeaders = false;
///是否将信头编码成iso-8859-1字符集
MailInfo MailInfoObj = new MailInfo();
MailInfoObj.MailSubject = mailMessage.Subject;
MailInfoObj.MailMessage = mailMessage.HTMLBody;
MailInfoObj.FromMail = mailMessage.From;
MailInfoObj.atts = new List<string>();
for (int j = 0; j < atts.Count; j++)
{
///取得附件
att = atts[j];
///附件名称
string atturl= "e:\\" + att.Name;
///上传到服务器
if (!File.Exists(atturl))
{
att.SaveToFile(atturl);
}
MailInfoObj.atts.Add(atturl);
}
ListViewItem item = new ListViewItem();
item.Text = mailMessage.From;
item.Tag = MailInfoObj;
lsvMail.Items.Add(item);
}
}
else
{
lbMsg.Text = "没有新邮件!";
}
//popMail.DeleteMessages();
popMail.Disconnect();
popMail = null;
}
catch (Exception ex)
{
lbMsg.Text = "请检查邮件服务器的设置是否正确！";
}