精美通用PPT模板浅蓝地球主题

1、单击此处编辑主标题单击此处编辑主标题 单击此处编辑副标题单击此处编辑副标题 单击此处编辑标题单击此处编辑标题 正文部分样例a 正文部分样例b 正文部分样例c 正文部分样例d 正文部分样例i 正文部分样例ii 正文部分样例iii 单击此处编辑标题单击此处编辑标题 正文部分样例a 正文部分样例b 正文部分样例c 正文部分样例d 正文部分样例i 正文部分样例ii 正文部分样例iii 正文标题正文标题 第一级 第二级 第三级 第四级 第五级 正文标题正文标题 第一级 第二级 第三级 第四级 第五级 样例文本样例文本a gemmi cong 精美ppt模板尽在如下豆单 http:/ 欢迎大家欣赏和下载

2、样例文本样例文本a gemmi cong 精美ppt模板尽在如下豆单 http:/ 欢迎大家欣赏和下载 样例文本样例文本b the article about sender rewriting contains technical background info about the early smtp history and source routing before rfc 1123. sendmail was one of the first (if not the first) mail transfer agents to implement smtp.citation needed

3、 some other popular smtp server programs include postfix, qmail, novell groupwise, exim, novell netmail, microsoft exchange server, sun java system messaging server. message submission (rfc 2476) and smtp-auth (rfc 2554) were introduced in 1998 and 1999, both describing new trends in e-mail delivery

4、. originally, smtp servers were typically internal to an organization, receiving mail for the organization from the outside, and relaying messages from the organization to the outside. but as time went on, smtp servers (mail transfer agents), in practice, were expanding their roles to become message

5、 submission agents for mail user agents, some of which were now relaying mail from the outside of an organization. (e.g. a company executive wishes to send e-mail while on a trip using the corporate smtp server.) this issue, a consequence of the rapid expansion and popularity of the world wide web,

6、meant that smtp had to include specific rules and methods for relaying mail and authenticating users to prevent abuses such as relaying of unsolicited e- mail (spam). 样例文本样例文本b the article about sender rewriting contains technical background info about the early smtp history and source routing befor

7、e rfc 1123. sendmail was one of the first (if not the first) mail transfer agents to implement smtp.citation needed some other popular smtp server programs include postfix, qmail, novell groupwise, exim, novell netmail, microsoft exchange server, sun java system messaging server. message submission

8、(rfc 2476) and smtp-auth (rfc 2554) were introduced in 1998 and 1999, both describing new trends in e-mail delivery. originally, smtp servers were typically internal to an organization, receiving mail for the organization from the outside, and relaying messages from the organization to the outside.

9、but as time went on, smtp servers (mail transfer agents), in practice, were expanding their roles to become message submission agents for mail user agents, some of which were now relaying mail from the outside of an organization. (e.g. a company executive wishes to send e-mail while on a trip using

10、the corporate smtp server.) this issue, a consequence of the rapid expansion and popularity of the world wide web, meant that smtp had to include specific rules and methods for relaying mail and authenticating users to prevent abuses such as relaying of unsolicited e- mail (spam). 样例文本样例文本c sendmail

11、是最早实现smtp的邮件传输代理之一。到2001年至少 有50个程序将smtp实现为一个客户端（消息的发送者）或一个 服务器（消息的接收者）。一些其他的流行的smtp服务器程序 包括了philip hazel的exim，ibm的postfix， d. j. bernstein的 qmail，以及microsoft exchange server。 由于这个协议开始是基于纯ascii文本的，它在二进制文件上处 理得并不好。诸如mime的标准被开发来编码二进制文件以使其 通过smtp来传输。今天，大多数smtp服务器都支持8位mime 扩展，它使二进制文件的传输变得几乎和纯文本一样简单。 smtp

12、是一个“推”的协议，它不允许根据需要从远程服务器上 “拉”来消息。要做到这点，邮件客户端必须使用pop3或imap。 另一个smtp服务器可以使用etrn在smtp上触发一个发送。 样例文本样例文本c sendmail是最早实现smtp的邮件传输代理之一。到2001年至少 有50个程序将smtp实现为一个客户端（消息的发送者）或一个 服务器（消息的接收者）。一些其他的流行的smtp服务器程序 包括了philip hazel的exim，ibm的postfix， d. j. bernstein的 qmail，以及microsoft exchange server。 由于这个协议开始是基于纯asci

13、i文本的，它在二进制文件上处 理得并不好。诸如mime的标准被开发来编码二进制文件以使其 通过smtp来传输。今天，大多数smtp服务器都支持8位mime 扩展，它使二进制文件的传输变得几乎和纯文本一样简单。 smtp是一个“推”的协议，它不允许根据需要从远程服务器上 “拉”来消息。要做到这点，邮件客户端必须使用pop3或imap。 另一个smtp服务器可以使用etrn在smtp上触发一个发送。 内内 容容 概概 览览 标题标题1 标题标题2 标题标题3 标题标题4 标题标题5 内内 容容 概概 览览 标题标题1 标题标题2 标题标题3 标题标题4 标题标题5 内内 容容 概概 览览 第一节第

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