Introduction to SMTP commands and ESMTP Processes What is SMTP
SMTP (Simple Mail Transfer Protocol): the transmission protocol used to transmit an email from a client to a server or from one server to another. SMTP is a request/response protocol. commands and responses are based on ASCII text and end with Cr and LF ch
Recently, using the Mail Service on a project, the mail service that comes with it can send messages, but after testing, the addresses that are sent are not regular messages. Originally wanted to lazy use of sendmail, but the old was blocked, so had to use third-party authorization to send mail, the following is my ubuntu12 on the operation
Basic Environment
[Email protected]:/home/lt5# cat/etc/issueubuntu 14.04.5 LTS \ \l[email protected]:/home/lt5# uname-alinux lt5 4.4.0-31 -gene
?
* Name: send email with socket* Description: This class implements the direct use of the SMTP server that needs to be authenticated to send mail directly, reference article "send email with socket" Author: Limodou* This article is relatively early, he is using not to verify the SMTP server to send mail, now basically the SMTP server needs to verify, so this art
Smtp. php? Phpclasssmtp {* PublicVariables * var $ smtp_port; var $ time_out; var $ host_name; var $ log_file; var $ relay_host; var $ debug; var $ auth; var $ user; var $ pass; * PrivateVariables * var $ sock; * Constractor * functionsmtp ($ relay_h SMTP email server
Smtp. php
Class smtp
{
/* Public Variables */
V
Www. linuxforum. netJepheWu (2001-04-2118:16:42) 1. SMTP works in two situations: one is the transmission of email from the client to the server, and the other is the transmission from one server to another. SMTP is a request response protocol. commands and responses are based on ASCII text and end with CR and LF characters. The response includes one that indicates that
The original authorization code and working principle of the SMTP protocol. Www. linuxforum. netJepheWu (2001-04-2118:16:42) 1. SMTP works in two situations: one is to transfer an email from the client to the server, and the other is to transfer the email from one server to another. http://www.linuxforum.net Jephe Wu (18:16:42) 1. SMTP works in two situations: on
be sent in three ways:
1. using PHP functionsSendmailSend (recommended)2. connect to the SMTP server through SOCKET (ESMTP verification is supported)3. send an Email using the PHP function SMTP (only valid on Windows hosts, ESMTP verification not supported)
Because we use QQ Enterprise mail, we choose to: 2. connect to the SMTP server through SOCKET (ESMTP verif
Table (1) SMTP CodeCode definition421 service not available, hosts in the closing transmission channel brackets cannot provide normal services, close the transmission pipeline, and emails will be stuck on the host450 requested mail action not taken: the mail action required by mailbox unavailable cannot be executed: the mail cannot provide services, and the mail will be stuck on the host451 requested action aborted: Local error in processing requires
Basic structure of SMTP
The SMTP (Simple Mail Transfer Protocol) protocol is designed to ensure reliable and efficient delivery of e-mail. The TCP/IP protocol has an SMTP protocol in the application layer, but in fact it has nothing to do with the transport system and mechanism, requiring only a reliable data flow path. It can work on TCP, and it can work on pro
Because PHP does not provide out-of-the-box SMTP functions, it provides a less flexible mail () function that requires support on the server configuration and does not support SMTP authentication, and is not recommended for use in many situations. The purpose of this article is to specify the direction for the novice, and did not involve those advanced content, a limited level of their own, and also worry a
Installing the POP3 and SMTP service components
Windows Server 2003 does not have the POP3 and SMTP service components installed by default, so we want to add them manually.
1. Install POP3 Service Components
Log on to the Windows Server 2003 system as a system administrator. Go to control Panel → add or Remove Programs → add/Remove Windows components, select the E-mail Service option in the Windows Comp
Use a Socket to send an email (using the SMTP server to be verified ).? * Name: use Socket to send emails * Description: This class enables direct sending of emails using the SMTP server to be verified. See the article "sending emails with Socket":
* Name: use Socket to send an email* Description: This class allows you to directly send emails using the SMTP serv
This article mainly introduces the SMTP mail sending class for PHP to support SSL connections. The example analyzes the principles and skills of php to implement the smtp mail sending class and the methods to support SSL connections, for more information, see
This article mainly introduces the SMTP mail sending class for PHP to support SSL connections. The exampl
Smtp email sending is much more practical than phpmail functions. The mail function does not allow you to send emails as needed, next, let's take a look at the smtp mail class and the solution to the problem. When you are still struggling with the built-in php ma... smtp email sending is much more practical than php mail functions. The mail function does not allo
A POP3 and SMTP command from Baidu Library
POP3 commands
What is POP3?POP3 (Post Office Protocol 3) is the 3rd version of the Post Office Protocol. It specifies how to connect a personal computer to an Internet Mail Server and download an email Protocol. It is the first offline protocol standard for Internet email. POP3 allows you to store emails on the server to a local host (your computer, delete the emails stored on the mail server, while the POP3
Document directory
Use telnet to manually send and receive SMTP/pop mails
Use telnet to manually send and receive SMTP/pop mails
Note: manual input is represented in a blue font, and # is followed by a comment, which cannot be entered.
========= Calculate the base64 encoded username and password first, Used for authentication login ==========[Crazywill @ localhost crazywill] $ Perl-mmime: base64-e 'print
Many other content Welcome to personal site Http://icodeyou.comA few days ago using the socket to implement the Java language to build webserver, the whole process should be the socket this thing has been used very familiar. Although abstract, once used once you will feel how powerful it is in network communication. Well, just keep using the socket today to practice sending a simple email using the SMTP protocol below. Today's story is, I'm asking my
[Javax. Mail. nosuchproviderexception: no provider for SMTP] occurs when you send an email using javamail,I searched the internet, mostly because the jar files such as mail. jar and activation. jar are not placed under classpath, but here I amIf you really put it under classpath, why? After debugging, you cannot solve the problem for a long time. A lot of time is wasted.Can only start from the mail. Jar itself, use WinRAR and other open mail. jar file
I. Purpose* Implement LDAP to meet barracuda Anti-Spam system applications* Implements LDAP to query Domino user information in outlook.* POP3 is implemented to enable Domino Mail to support e-mail clients such as outlook.* Enable SMTP authentication
Ii. POP3 settings1. Shut down the Domino server and Domino administrator, and restart the server.2. Go to disk D (Domino'sProgramDirectory), D:/Lotus/Domino, open notes. ini ,,* Add a POP3 task in "serv
PackageCom.sm.modules.oa.web;Importjavax.mail.Session;ImportJavax.mail.Transport;Importjavax.mail.internet.InternetAddress;ImportJavax.mail.internet.MimeMessage;Importjava.util.Date;Importjava.util.Properties; Public classSend {//Sender's mailbox and password (replaced by their mailbox and password)//PS: Some mailbox servers in order to increase the security of the mailbox itself password, to the SMTP client set up a separate password (some mailboxes
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.