邮件操作：POP3协议
邮件操作，用POP3协议实现
1
private void GetMail()
2
{
3
//连接邮件服务器
4System.Net.Sockets.TcpClient TC = new System.Net.Sockets.TcpClient("pop.163.com", 110);
5//发送用户名
6byte[] A_Array = Encoding.ASCII.GetBytes("USER robbine111\r\n");
7//发送密码
8byte[] B_Array = Encoding.ASCII.GetBytes("PASS 201103\r\n");
9//察看邮件列表：统计信息
10byte[] C_Array = Encoding.ASCII.GetBytes("STAT\r\n");
11//察看邮件列表：邮件数量和大小
12byte[] D_Array = Encoding.ASCII.GetBytes("LIST\r\n");
13//关闭连接
14byte[] E_Array = Encoding.ASCII.GetBytes("QUIT\r\n");
15//缓存数组
16byte[] Buff = new byte[256];
17//缓存字符串
18string Buff_Str = "";
19//读取计数
20int i = 0;
21//获取网络流
22NetworkStream NS = TC.GetStream();
23//写入第一条命令
24NS.Write(A_Array, 0, A_Array.Length);
25//读取响应
26i = NS.Read(Buff, 0, 256);
27//字节解码
28Buff_Str += Encoding.UTF8.GetString(Buff, 0, i);
29i = 0;
30//刷新流
31NS.Flush();
32//写入第二条命令
33NS.Write(B_Array, 0, B_Array.Length);
34i = NS.Read(Buff, 0, 256);
35//读取响应
36Buff_Str += Encoding.UTF8.GetString(Buff, 0, i);
37i = 0;
38//刷新流
39NS.Flush();
40//写入第三条命令
41NS.Write(C_Array, 0, C_Array.Length);
42//读取大数据量
43string MailCountMsg = "";
44do
45
{
46i = NS.Read(Buff, 0, 256);
47MailCountMsg = Encoding.UTF8.GetString(Buff, 0, i);
48Buff_Str += MailCountMsg;
49
} while (i >= 256);
50
获取所有的邮件
60i = 0;
61//分析邮件列表
62NS.Write(D_Array, 0, D_Array.Length);
63//读取邮件列表
64do
65{
66i = NS.Read(Buff, 0, 256);
67Buff_Str += Encoding.GetEncoding("GB2312").GetString(Buff, 0, i);
68} while (i >= 256);
69//写入结束命令
70NS.Write(E_Array, 0, E_Array.Length);
71NS.Close();
72MailContentBox.AppendText(Buff_Str);
73
}
private void GetMail()2
{
3
//连接邮件服务器4
System.Net.Sockets.TcpClient TC = new System.Net.Sockets.TcpClient("pop.163.com", 110);5
//发送用户名6
byte[] A_Array = Encoding.ASCII.GetBytes("USER robbine111\r\n");7
//发送密码8
byte[] B_Array = Encoding.ASCII.GetBytes("PASS 201103\r\n");9
//察看邮件列表：统计信息10
byte[] C_Array = Encoding.ASCII.GetBytes("STAT\r\n");11
//察看邮件列表：邮件数量和大小12
byte[] D_Array = Encoding.ASCII.GetBytes("LIST\r\n");13
//关闭连接14
byte[] E_Array = Encoding.ASCII.GetBytes("QUIT\r\n");15
//缓存数组16
byte[] Buff = new byte[256];17
//缓存字符串18
string Buff_Str = "";19
//读取计数20
int i = 0;21
//获取网络流22
NetworkStream NS = TC.GetStream();23
//写入第一条命令24
NS.Write(A_Array, 0, A_Array.Length);25
//读取响应26
i = NS.Read(Buff, 0, 256);27
//字节解码28
Buff_Str += Encoding.UTF8.GetString(Buff, 0, i);29
i = 0;30
//刷新流31
NS.Flush();32
//写入第二条命令33
NS.Write(B_Array, 0, B_Array.Length);34
i = NS.Read(Buff, 0, 256);35
//读取响应36
Buff_Str += Encoding.UTF8.GetString(Buff, 0, i);37
i = 0;38
//刷新流39
NS.Flush();40
//写入第三条命令41
NS.Write(C_Array, 0, C_Array.Length);42
//读取大数据量43
string MailCountMsg = "";44
do45
{46
i = NS.Read(Buff, 0, 256);47
MailCountMsg = Encoding.UTF8.GetString(Buff, 0, i);48
Buff_Str += MailCountMsg;49
} while (i >= 256);50
获取所有的邮件60
i = 0;61
//分析邮件列表62
NS.Write(D_Array, 0, D_Array.Length);63
//读取邮件列表64
do65
{66
i = NS.Read(Buff, 0, 256);67
Buff_Str += Encoding.GetEncoding("GB2312").GetString(Buff, 0, i);68
} while (i >= 256);69
//写入结束命令70
NS.Write(E_Array, 0, E_Array.Length);71
NS.Close();72
MailContentBox.AppendText(Buff_Str);73
}
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