smtp

Constraints on SMTP Message-Id?

由 ↘锁芯ラ 提交于 2019-12-10 03:43:58
问题 Are there constraints on the length and/or format of SMTP message-id's? I.e.: How long may they be, and are only certain characters allowed? (I plan to use only ASCII, but I fear that there may even be ASCII characters which aren't allowed.) RFC822 defines this, but are there updated RFCs or common real-World aspects (such as common bugs in mail software) which should be considered? 回答1: The updated RFC is RFC2822. As of characters allowed, it basically ::alpha::|::digit::|[!#$%&'*+-/=?^_`{}|

SmtpClient.SendAsync Calls are Automatically Cancelled

由 江枫思渺然 提交于 2019-12-10 03:36:24
问题 Whenever I call smtpClient.SendAsync(...) from within my ASP.NET MVC application, the asynchronous requests are automatically cancelled, even though SendAsyncCancel() is never called. Synchronous .Send(...) requests, on the other hand, go through just fine. My EmailService service wrapper handles sending asynchronous email with SmtpClient from within my ASP.NET MVC 3 application. A service instance is injected into each MVC controller by StructureMap, which wraps a new SmtpClient instance in

Erroneous email receiver display when using German umlauts and a comma in name

由 拜拜、爱过 提交于 2019-12-10 03:22:53
问题 Using the MailMessage class in .NET 4, I found an issue today that I'm unable to resolve so far. Please see the following code: using (var message = new MailMessage()) { message.From = new MailAddress(@"uwe.keim@gmail.com", "Uwe Keim"); message.Bcc.Add(new MailAddress(@"uk@zeta-software.de", "Uwe Keim")); // This fails (see screenshot). /*1*/ message.To.Add(new MailAddress(@"uk2@zeta-sw.net", "Müller, Fred")); // This succeeds. /*2*/ message.To.Add(new MailAddress(@"uk2@zeta-sw.net", "Fred

Outlook SMTPClient server error 5.3.4 5.2.0

由 核能气质少年 提交于 2019-12-10 02:47:10
问题 I have a MVC .NET web application that has been running stable for the most part of a year now. However today we received an error code and I'm having trouble finding how to resolve the issue. In the application I use SMTPClient to send emails out. For this we use a outlook email account. This was working fine until today. The error code that I get is this: Mailbox unavailable. The server response was: 5.3.4 554-554 5.2.0 STOREDRV.Deliver; delivery result banner Here is the code that I use in

553 5.7.1 <mydomain>: Sender address rejected: not owned by user admin@mydomain.com

由 自闭症网瘾萝莉.ら 提交于 2019-12-10 02:06:05
问题 In a rails4 application, I am trying to send emails by configuring smtp settings but I am getting the following error: 553 5.7.1 : Sender address rejected: not owned by user admin@mydomain.com I am using the following settings: config.action_mailer.delivery_method = :smtp ActionMailer::Base.smtp_settings = { :address => "smtp.mydomain.com", :port => 25, :domain => "mydomain.com", :user_name => "admin@mydomain.com", :password => "CorrectPassword", :authentication => :plain, :enable_starttls

Send email from my custom mailgun SMTP address

由 柔情痞子 提交于 2019-12-10 00:40:36
问题 Sorry if I have not understood something but (I believe) I have searched enough for this. First things first: I have successfully set up my domain ( mydomain.gr ) which has been verified. I have created a custom SMTP address ( contact@mydomain.gr ). I have created a route which forwards everything sent at *@mydomain.gr to my personal Gmail address. Test 1: If I send an email from an external address (something@something.eu) to contact@mydomain.gr it is forwarded to my personal Gmail. OK! Test

Sending email using xampp localhost

由 不问归期 提交于 2019-12-10 00:32:26
问题 Please help me send email using php, I searched trough google and found out that I need to reconfigure/edit my php.ini and change SMTP value and smtp_port, I dont know what exactly what will I put on those lines. Thanks for helping! 回答1: It would be a lot easier to use a phpmailer script like this, but you can also do it without that by setting: smtp_ssl = ssl and configure the sendmail.ini so that it connects with your @gmail.com account credentials, or it will not be able to connect. 来源：

万网虚拟机不能使用smtp的问题解决方法

由 让人想犯罪 __ 提交于 2019-12-10 00:03:16
昨晚为了自己的网站开发了个简单的发送邮件的功能，在本地测试是成功的，放在万网的虚拟机上却不成功了，一直提示ERROR: Failed to connect to server: (0)。 后面我查了下，发现是服务器关闭了 fsockopen 函数。我就去万网的主机管理里看了看，在万网的主机管理里的网站高级管理，里面有个php函数设置。 这时就可以看到 fsockopen 是默认关闭的，将它开启即可。 来源： oschina 链接： https://my.oschina.net/u/1860083/blog/315356

Php mailer google smtp working on localhost not working on live site

由 谁说我不能喝 提交于 2019-12-09 20:45:07
问题 I'm trying to send mail to registered user after registration. For that I m using phpmailer library. my code is as below: function smtpmailer($to, $from, $from_name, $subject, $body) { global $error; $username = "xyz@demo.net"; $password = "1234567"; $mail = new PHPMailer(); // create a new object $mail->IsSMTP(); // enable SMTP $mail->SMTPDebug = 1; // debugging: 1 = errors and messages, 2 = messages only $mail->SMTPAuth = true; // authentication enabled $mail->SMTPSecure = 'ssl'; // secure

1.应用层

由 匆匆过客 提交于 2019-12-09 19:53:29
http\ftp\smtp\dns\ssh\dhcp\telnet 一、应用层概念 　　运输层为应用进程提供了端对端的通信服务。但是不同的网络应用进程之间还需要不同的通信规则。因此，在运输层之上还需要有应用层协议。 　　应用层的任务是 通过应用进程间的交互来完成特定网络应用 。应用层协议定义的是 应用进程间的通信和交互的规则 ，对于不同的网络需要使用不同的应用层协议。例如域名系统DNS、支持万维网应用的HTTP协议，支持电子邮件的SMTP协议等等。 　　应用层交互的数据单元称为 报文 。 二、网络应用模型 　　分为两类： 　　①客户服务器（C/S）模型：一个服务器对应多个客户机。 　　②P2P模型：多个用户之间相互对应。 三、域名系统-DNS 　　1.DNS是用来把便于人们使用的 机器名字 转换成 IP地址 。 　　2.域名到IP地址的解析过程：当某一个应用进程需要把主机名解析为IP地址时，该应用进程就 调用解析程序 ，并成为DNS的一个客户；把待解析的 域名放在DNS请求报文中 ，以 UDP用户数据报方式 发给本地域名服务器（使用UDP是为了减少开销）；本地域名服务器在查找域名后，把对应的IP地址放在回答报文中返回。应用进程获得目的主机的IP地址后即可进行通信； 　　3.域名解析过程 　　　　①递归查询（靠别人，少用）：如果主机所询问的本地域名服务器不知道被查询的IP地址
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