smtp

哈哈哈 利用SmtpClient发送邮件

由 谁都会走 提交于 2019-12-18 20:46:12
1 163邮箱 HOST:smtp.163.com public static string CreateTimeoutTestMessage( string server) { string Success = "发送成功" ; try { string _to = "1035092449@qq.com" ; string _from = "young-20@163.com" ; string _subject = "Using the new SMTP client." ; string _body = @ "Using this new feature, you can send an e-mail message from an application very easily." ; MailMessage message = new MailMessage(); message.From = new MailAddress(_from); //可以利用MailMessage.To.Add方法增加要发送的邮件地址 message .To .Add ( new MailAddress ( "652105072@qq.com" )); message.To.Add( new MailAddress(_to)); message.Subject = _subject;

authentication failure [SMTP: STARTTLS failed (code: 220, response: 2.0.0 Ready to start TLS)]

由 喜夏-厌秋 提交于 2019-12-18 18:37:39
问题 i am trying to send email with attachment in PHP using SMTP and PEAR but getting the error as "authentication failure [SMTP: STARTTLS failed (code: 220, response: 2.0.0 Ready to start TLS)]" <?php require_once "Mail.php"; // PEAR Mail package require_once ('Mail/mime.php'); // PEAR Mail_Mime packge $from = "Your Mom <sender@gmail.com>"; $to = "Me <recepient address@gmail.com>"; $subject = 'Call Me!'; $headers = array ('From' => $from,'To' => $to, 'Subject' => $subject); // text and html

Unable to send email via google smtp on centos VPS

由 寵の児 提交于 2019-12-18 18:07:51
问题 I am trying to send email via google SMTP. The code is working fine in my local windows PC in tomcat. But i got this error on my centos VPS org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.googlemail.com:465 Here is code, please check it - // Create the email message HtmlEmail email = new HtmlEmail(); email.setHostName("smtp.googlemail.com"); email.setSmtpPort(465); email.setAuthenticator(new DefaultAuthenticator("username", "password")); email

JavaWeb之JavaMail

由 烂漫一生 提交于 2019-12-18 16:40:45
时间：2016-12-19 11:58 ——邮件协议 1、收发邮件 发邮件是从客户端把邮件发送到服务器，收邮件是把邮件服务器的邮件下载到客户端 2、邮件协议概述 与HTTP协议相同， 收发邮件也需要有传输协议。 * SMTP：（Simple Mail Transfer Protocol，简单邮件传输协议）发邮件协议。 * POP3：（Post Office Protocol Version3，邮局协议第3版）收邮件协议。 * IMAP：（Internet Message Access Protocol，因特网消息访问协议）收发邮件协议。 3、理解邮件收发过程 可以把邮件服务器理解为邮局，如果需要给朋友寄一封信，那么需要把信放到邮筒中，这样你的信会“自动”到达邮局，邮局会把信邮到另一个省市的邮局中，然后这封信会被送到收信人的邮箱中，最终需要收信人自己查看信件。 其实每个邮件服务器都由SMTP服务器和POP3服务器构成，其中SMTP服务器负责发邮件的请求，而POP3负责收邮件的请求。 有时会使用163的账号，向126的账号发送邮件，这时邮件是发送到126的邮件服务器，而对于163的邮件服务器来讲，是不会存储这封邮件的。 当目标账号不存在时，会退还邮件。 4、邮件服务器名称 SMTP服务器的端口号为25，服务器名称为：smtp.xxx.xxx POP3服务器的端口号为110，服务器名称为

reaching Gmail SMTP daily limit

由 北慕城南 提交于 2019-12-18 15:47:23
问题 In one of my Rails applications I'm sending emails through the Gmail SMTP server and everything just works, mails are not going to spam and so on ... But there's one thing that concerns me, the 500messages/day limit the SMTP has, currently I'm over 350/day. I didn't find any official Google page where they talk about the subject, just blog posts that seems to be reliable. Then my question is what do you suggest me in order to be able to send more than 500messages/day? I would love to keep

SMTP Authentication with config file's MailSettings

由 蓝咒 提交于 2019-12-18 14:16:09
问题 I'm storing my MailSettings in a web.config, however when I send the message, my SMTP server reports back that I need to use authentication. I've got my username/password in the config file, but it still fails. It works if I do the following, but it seems like an extra step. Shouldn't it just take it from the config file and use authentication automatically? System.Configuration.Configuration config = WebConfigurationManager.OpenWebConfiguration( HttpContext.Current.Request.ApplicationPath);

Verifying an email address exist in C#

由 こ雲淡風輕ζ 提交于 2019-12-18 12:33:00
问题 Regarding this post about email verification, using C#, how would you issue a VRFY command issue a RCPT command 回答1: IMO, RCPT method is the best one, and I still use it everyday. Here are the necessary code : http://mailsystem.codeplex.com/SourceControl/changeset/view/51422#541825 The class is quite heavy, you will have to pick the code snippet you need from the source code. 回答2: I think you will find that in many instances these functions will intentionally lie to you to defeat spammers. If

openssl to negotiate SSL encryption for STARTTLS

由 北慕城南 提交于 2019-12-18 12:29:14
问题 I'm using openssl to connect to an SMTP server normally (without encryption), send a STARTTLS command, negotiate the SSL encryption, and then interact with the encrypted session. This is the command I'm using (through telnet): openssl s_client -starttls smtp -crlf -connect 1.2.3.4:25 How can I ensure that TLS handshake was successful? This is the sequence of commands used so far: << 220 example.com ESMTP ready >> EHLO localhost << 250-smtp.mail.yahoo.com << 250-PIPELINING << 250-AUTH PLAIN

Guidelines for email newsletter service

由 纵然是瞬间 提交于 2019-12-18 12:07:46
问题 I'm implementing a email newsletter sender service using .NET and Windows Server technologies. Are there comprehensive guidelines which could help avoiding emails being trapped by spam filters and other mechanisms? They should cover all aspects of (legal) bulk mail sending: SMTP configuration, DNS, HTML content, images, links within content etc. A simple example: is it better to embed images or load them from a server? It would be great if you could provide some empirical data to show the

SMTP through Exchange using Integrated Windows Authentication (NTLM) using Python

由 风格不统一 提交于 2019-12-18 10:55:21
问题 I want to use the credentials of the logged-in Windows user to authenticate an SMTP connection to an Exchange server using NTLM. I'm aware of the python-ntlm module and the two patches that enable NTLM authentication for SMTP, however I want to use the current user's security token and not have to supply a username and password. Very similar problem to Windows Authentication with Python and urllib2. 回答1: Although the solution below only uses the Python Win32 extensions (the sspi example code
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