fields contained in email header

The HTTP header field includes class 4:     general-header;     request-header;      Response-header;     Entity-header.  ********************************************  general Header fields=============================   General Headers are

The HTTP header field includes class 4:     general-header; Generic headers      request-header; Request Header      Response-header; Response Header      Entity-header. Entity Header  *****************************************************************

First, the basic articleHTTP (hypertexttransferprotocol) is the abbreviation of Hypertext Transfer Protocol, it is used to transmit data of WWW mode, please refer to RFC2616 for details of HTTP protocol. The HTTP protocol uses a request/response

SMTP (Simple Mail Transfer Protocol) The message transfer agent (mail Transfer AGENT,MTA) program uses the SMTP protocol to send e-mail to the recipient's mail server. The SMTP protocol can only be used to send messages and not to receive messages.

SMTP (simple Mail Transfer Protocol)The mail delivery Agent (mail Transfer Agent,mta) program uses the SMTP protocol to send email to the Recipient's mail server. The SMTP protocol can only be used to send messages and cannot be used to receive

Summary: Writing a mail system or mailing list program is a big branch of PHP application, while PHP provides a simple function for sending emails, in practice it involves sending mail with attachments, testing the validity of the email address that

Chapter 7 Registration Section 1 Overview SIP provides a capability to discover users. If a user wants to enable a session with another user, the SIP must be able to discover the current host of the target user. This discovery process is often used

First, the concept1.HTTP protocol: Hypertext Transfer Protocol (Hypertext Transfer Protocol). Is a rule that specifies the communication between the browser and the Web server, which allows Hypertext Markup Language (HTML) documents to be routed

First, the concept1.HTTP protocol: Hypertext Transfer Protocol (Hypertext Transfer Protocol). Is a rule that specifies the communication between the browser and the Web server, which allows Hypertext Markup Language (HTML) documents to be routed

The main features of HTTP protocol can be summarized as follows: 1. Support for customer/Server modes. 2. simple and fast: when a customer requests a service from the server, they only need to send the request method and path. Common Request methods