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电子邮件的三个协定: SMTP、IMAP、POP3

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  解说了跟电子邮件有关的三个协定:

  SMTP(simple message transfer protocol 复杂信息传输协定

  IMAP (internet message access protocol 互联网信息获得协定

  POP3 (post office protocol version3 邮局协定v3

  SMTP许可发送邮件到邮件效劳器 (发送邮件

  IMAP和POP3从邮件效劳器拉取邮件,IMAP有同步、归档等功用,POP3则没有同步的功用 (拉取邮件

  资料一:

  三个和email有关的协定:

  SMTP simple message transfer protocol:

  allow you to send out a message to your internet server

  through route to its destination, once it arrives destination

  it stored on that mail server until a email client grabs it.

  and the two major methods of grabbing that are

  IMAP:

  Internet Message Access Protocol

  (its nice synchronizing two or more applications.

  if you have a Blackberry or a Iphone or serveral computers

  and you want to read the same message across the board then

  IMAP is the system for u.

  IMAP allows you to organize a hierachy of messages

  so you can have your inbox and then below your inbox

  you can have modify folders, sothat all your clients

  will get the change of your folders.

  if you dont use hierachy organize, pop3 may be better.

  if one message you marked as read, all your clients will

  show its read.(its all about synchronize

  and POP3:

  Post Office Protocol Version 3(Quick and simple

  资料二:

  POP3"

  

  it doesnt download any other folders or their contents,

  so it doesnt download your sent items, your drafts,your deleted mail...

  and it doesnt do any synchronization

  

  所以能够会形成如许的后果,新的邮件来了,下面的收到了,然则下面的收不到了,(因为效劳器发给下面的客户端后就删除掉落了

  

  然则很多客户端会有一个 leave a copy on the server 选项,防止这类后果爆发

  

  IMAP:

  

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