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454 authentication failed, please open SMTP flag first!

1. Error description454 authentication failed, please open SMTP flag first! Exception in thread "main" Javax.mail.AuthenticationFailedExceptionat Javax.mail.Service.connect (service.java:267) At Javax.mail.Service.connect (service.java:137) at Com.you.mail.model.SendMessage.sendMessage (sendmessage.java:70 ) at Com.you.mail.model.SendMessage.main (sendmessage.java:89)2. Cause of errorToday, I wrote a small instance of sending a message. At first, I us

Common Mailbox Server (SMTP, POP3) addresses, ports

Reprint: http://blog.sina.com.cn/s/blog_6e85b10501012kyv.html Gmail (google.com)POP3 Server address: pop.gmail.com (SSL enabled port: 995)SMTP Server address: smtp.gmail.com (SSL-enabled port: 587)21cn.com:POP3 Server address: pop.21cn.com (port: 110)SMTP Server address: smtp.21cn.com (port: 25)Sina.com:POP3 Server address: pop3.sina.com.cn (port: 11

Linux under Configuration using external SMTP outgoing mail

The original use of Linux SendMail e-mail, and then do a safe time to turn off a sendmail service, resulting in the Mail has been unable to send. Now I'm going to configure the use of external SMTP to send mail, so you don't have to sendmail. Originally the system comes with MAILX program, because I am REDHAT5 system so can't send mail directly with external SMTP

Python for SMTP mail delivery

Always wanted to add mail to the framework, so organize under the Python mail send function First Python is a mail -enabled send, a built-in SMTP library, a message that supports sending plain text, HTML, and adding attachments . After the mailbox, such as 163, QQ, Sina and other mailboxes by default to turn off the SMTP service, we need to open manually, open,

SMTP Security Manual-Qmail Security

customer to use MUA to send emails, the customer must be allowed to use the server to forward emails. Qmail-smtpd supports a method to selectively ignore rcpthosts files: if the environment variable RELAYCLIENT of qmail-smtpd is set, the rcpthost file will be ignored and relay will be allowed. But how can I identify whether an email sender is a customer? Qmail does not adopt password authentication, but determines the source IP address of the sender. If the IP address belongs to the local netwo

Python3 smtp Send mail

The SMTP (Simple Mail Transfer Protocol) is simply the message Transfer Protocol, which is a set of rules for sending mail from the source address to the destination, and it controls the way the letters are relayed.Python's Smtplib provides a convenient way to send e-mails. It provides a simple encapsulation of the SMTP protocol.First, the opening of the SMTP

Section 38th: Python failed to send mail via SMTP protocol, error 505 or 535 or 554__python

Send failed error 1:SMTPLIB. Smtpauthenticationerror: (A, B ' User has no permission ')When we use Python to send a message, the custom client logs on with the user name and password, and then uses the SMTP service to send the mail, and the newly registered 163 mailboxes are not enabled by default, so logins are always denied. Workaround (Take 163 mailboxes for example): Enter 163 mailbox-set-Client author

SMTP configuration of the IMail mail server and send mail under. Net using System.Net.SmtpClient

: A viable configuration for the 1.IMail SMTP service. 2. Use System.Net.SmtpClient to send mail. Feasible configuration of IMail SMTP service The reason I pet the SMTP service is because it's the most annoying source of use f

Implementing code for sending mail using SMTP in asp.net-practical tips

Core code: Copy Code code as follows: public class Mail { #region Message Parameters static public string accountname = system.configuration.configurationmanager.appsettings["Smtpaccountname"]; static public string password = system.configuration.configurationmanager.appsettings["SMTPACCOUNTPW"]; static public string smtpserver = system.configuration.configurationmanager.appsettings["SmtpServer"]; static public int smtpport = Int. Parse (system.configuration.configurationmanag

Use Socket in VB6.0 to send emails with SMTP authentication

. RefreshWinsock1.SendData (Base64_Encode ("danny@xxx.gov.cn") + vbCrLf)WaitFor ("334 ")StatusTxt. Caption = "Sending Username"StatusTxt. RefreshWinsock1.SendData (Base64_Encode ("danny") + vbCrLf)WaitFor ("235 ")StatusTxt. Caption = "Sending Password"StatusTxt. RefreshWinsock1.SendData (first)StatusTxt. Caption = "Sending Message"StatusTxt. RefreshWaitFor ("250 ")Winsock1.SendData (Second)WaitFor ("250 ")Winsock1.SendData ("data" + vbCrLf)WaitFor ("354 ")Winsock1.SendData (Eighth + vbCrLf)Winso

Perl uses SMTP to send mail scripts (with authentication)

#!/usr/bin/perl-wUse strict;Use NET::SMTP;Use AUTHEN::SASL (requires user authentication on the SMTP server, required module)BEGIN {Push (@INC, '/usr/lib/perl5/5.8.8/net/'); } My $from = ' huashan125@huashan.peonymao.com ';My $to = ' peonymao@orrisintl.com ';My $username = ' huashan125 ';My $passwd = ' huashan125 ';My $subject = ' Test Email ';My $smtp = net::

Could not connect to SMTP Host:localhost, port:25;

1. Error descriptionDEBUG:setDebug:JavaMail version 1.3.3debug:getprovider () returning JAVAX.MAIL.PROVIDER[TRANSPORT,SMTP, Com.sun.mail.smtp.smtptransport,sun Microsystems, Inc]debug Smtp:useehlo True, Useauth TrueDEBUG smtp:trying to connect To host ' localhost ', port, Isssl falseexception in thread ' main ' javax.mail.MessagingException:Could not connect to S MTP Host:localhost, port:25; Nested exception is:java.net.ConnectException:Connection R

Server (SMTP/POP3) address and port summary for common mailboxes

163.com:POP3 Server address: pop.163.com (port: 110)SMTP Server address: smtp.163.com (port: 25)126 e-Mail:POP3 Server address: pop.126.com (port: 110)SMTP Server address: smtp.126.com (port: 25)139 e-mail:POP3 Server address: pop.139.com (port: 110)SMTP Server address:

What are the differences and connections between POP3, SMTP, and IMAP?

are fed back to the server, the messages are manipulated, and the messages on the server do the corresponding actions.at the same time, IMAP , like POP3, provides a convenient e-mail download service that allows users to read offline. IMAP The Summary browsing feature allows you to decide whether or not to download after you have read all the message arrival time, subject, sender, size, etc. . In addition, IMAP is better able to support access to new

Python sends an SMTP message with an attachment

With Python's email module you can easily send emails, and you can even attach them in your email! The premise is that your mailbox opens the SMTP service (generally open, if not turned on, you can set up in your mailbox), you can put the recipient and the sender are written into a mailbox to test, so that they send themselves e-mail.#coding: Utf-8import smtplibfrom email.mime.multipart Import mimemultipart

Linux under Configuration using external SMTP outgoing mail

[email protected] mailx-12.4]# make #再次编绎[[email protected] mailx-12.4]# make install Ucbinstall=/usr/bin/install/usr/bin/install-c MAILX/USR/LOCAL/BIN/MAILXStrip/usr/local/bin/mailxtest-d/usr/local/share/man/man1 | | Mkdir-p/usr/local/share/man/man1/usr/bin/install-c-M 644 mailx.1/usr/local/share/man/man1/mailx.1test-d/etc | | Mkdir-p/etcTest-f/etc/nail.rc | | \/usr/bin/install-c-M 644 nail.rc/etc/nail.rc[[email protected] bin]# vim/etc/nail.rc #编辑nail. RC Configure external

Php two ways to send mail php use smtp to send mail

: This article mainly introduces two methods for sending mails by php using smtp. For more information about php tutorials, see. Original article: http://www.jbxue.com/php/25502.html This article introduces two methods for sending mails in php: sending mails using the built-in mail () function in PHP and sending mails using the mail class that encapsulates the SMTP protocol, we recommend that you use the ma

Common mail SMTP Pop

Common Mailbox Server (SMTP, POP3) addresses, portsSina.com:POP3 Server address: pop3.sina.com.cn (port: +) SMTP server address: smtp.sina.com.cn (port: 25)SINAVIP:POP3 Server: pop3.vip.sina.com (port: +) SMTP server: smtp.vip.sina.com (port: 25)Sohu.com:POP3 Server address: pop3.sohu.com (port: +) SMTP server address:

php Send mail Two ways PHP uses SMTP to send mail

Original: http://www.jbxue.com/php/25502.html This article introduces two methods of sending mail in PHP, using the PHP built-in mail () function to send mail, sending mail using the message class encapsulating the SMTP protocol, and recommending mail delivery using the SMTP protocol encapsulated message class. How does php send mail? There are many ways to do this, but using the

White's lab report (i)---SMTP SERVER

Experimental environment: Servers: NT server, IIS40, SMTP server (ip=10.1.3.120) Client: Win98,outlook express,ie4 (ip=10.1.3.123) Network: Intranet, with one IP (202.98.35.55) line connected to the Internet through a gateway (router) First, send e-mail to the Internet 1. In asp: No settings changes have been made to SMTP, sending an e-mail message with the bird's sendmail.asp, recipient white@linux.cqi.com

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