邮件系统查询 [英] Mailing System query

问题描述

当邮件被退回或移入垃圾邮件或打开邮件等情况时，有什么方法可以跟踪发送邮件以获取状态?
如果有人知道，请回复...

what are the ways to keep track of send mails to get the status as mail is been bouncsed or move into junk mail or mail is been opened etc.
If anyone is aware of it kindly reply...

推荐答案

您需要研究SMTP和POP3协议.

如果您有兴趣与交换服务器进行交互，那么MAPI是您可能需要研究的技术. Exchange还支持WebDAV. (也许还有其他接口...)

You''ll need to research the SMTP and POP3 Protocols.

If you''re interested in interacting with exchange servers then MAPI is a technology you may want to look at. Exchange also supports WebDAV. (And perhaps other interfaces...)

这是一件事

为什么邮件会退回?
1.服务器名称错误
2.用户名错误

如果服务器名称错误，则根本无法发送电子邮件
但是，如果用户名不存在，那么您可能会收到550条消息，这是从RFC2821复制的一段

Here is a thing

Why mail bounce?
1. server name is wrong
2. user name is wrong

if Server name is wrong you cannot send the email at all
But if the user name does not exists then you might get 550 message, here is a paragraph copied from RFC2821

However, in practice, some servers do not perform recipient
   verification until after the message text is received.  These servers
   SHOULD treat a failure for one or more recipients as a "subsequent
   failure" and return a mail message as discussed in section 6.  Using
   a "550 mailbox not found" (or equivalent) reply code after the data
   are accepted makes it difficult or impossible for the client to
   determine which recipients failed.

关于转移到垃圾邮件:事实上，可以将垃圾邮件视为目录，您可以将电子邮件移动到任何目录进行排序，但是发件人没有理由知道它的移动位置.垃圾邮件移动器也一样.服务器不会向您提供有关被移至垃圾邮件的任何信息.

and about moving to junk mail: as a matter of fact think junk mail as a directory, you can move your email to any directory to sort, but there is no reason for the sender to know where it moved. same about junk mail mover. Server wont give you any information about being moved to junk mail.

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