telnet收发邮件.docx

telnet收发邮件以下全在命令行里实现开始-运行-cmd(腾迅QQ的邮件服务器不行。可以链接，你输命令就断开了）接收新浪邮件1.链接telnet 110反回+OK pop3 proxy server ready2.输入帐号user *反回+OK3.输入密码pass *反回+OK4.列出新邮件list反回你的新邮件号和大小+OK1 40852 373983 90244 273895 276236 82587 11505.查看邮件retr 7(邮件号）反回邮件内容下面是命令的全过程+OK pop3 proxy server readyuser *+OKpass *+OKlist+OK1 40852 373983 90244 273895 276236 82587 1150.retr 7+OK发送新浪邮件1.链接服务器telnet 25反回220 ESMTP2.和服务器打招呼ehlo liuju(这个随便)反回250-250-8BITMIME250-SIZE 52428800250-AUTH PLAIN LOGIN250 AUTH=PLAIN LOGIN3.登陆服务器AUTH LOGIN反回334 VXNlcm5hbWU64.输入用户名bGl1anUxNTA=（用户名的base64编码）反回334 UGFzc3dvcmQ65.输入密码bG91YmxpdWp1（密码的base64编码）反回235 #2.0.0 OK Authenticated6.输入发送方邮件地址mail from:反回250 sender ok7.输入收件人地址rcpt to:反回250 recipient ok8.开始写信data反回354 go ahead9.开始写邮件Date:2009-7-6 21:40From:To:Subject:subject(邮件主题)这里写邮件的正文，记得和上面的Subject之间要有两个回车（空一行）到邮件的下面输入一个点，也要两个回车（空一行）输入得像我这样反回250 ok:Message 174716195 accepted下面是命令的全部反回结果220 ESMTPehlo 250-8BITMIME250-SIZE 52428800250-AUTH PLAIN LOGIN250 AUTH=PLAIN LOGINAUTH LOGIN334 VXNlcm5hbWU6bGl1anUxNTA=334 UGFzc3dvcmQ6bG91YmxpdWp1235 #2.0.0 OK Authenticatedmail from:250 sender okrcpt to:250 recipient okdata354 go aheadDate:2009-7-6 21:43From:To:Subject:subjectbody这里是邮件的正 文，和下面还有上面要有两个空行最下面输入点.250 ok:Message 174716195 accepted/C#base64编码string strCmd = liuju150;byte by = Encoding.Default.GetByte