如何使用Exchange 2007和C#在域外发送电子邮件 [英] How do I send emails outside my domain with Exchange 2007 and c#

问题描述

只要发件人和收件人地址都在我的域之内，我就可以在整个Exchange 2007中使用典型的C#SMTP代码发送电子邮件.

I am able to send emails using the typical C# SMTP code across Exchange 2007 as long as both the from and to addresses are within my domain.

一旦我尝试在域外发送电子邮件，我就会收到:

As soon as I try to send emails outside the domain I get:

异常详细信息:System.Net.Mail.SmtpFailedRecipientException:邮箱不可用.服务器响应为:5.7.1无法中继

Exception Details: System.Net.Mail.SmtpFailedRecipientException: Mailbox unavailable. The server response was: 5.7.1 Unable to relay

我该如何交换以接受我的电子邮件并将其发送到互联网?

How can I get exchange to accept my email and send it out to the internet?

推荐答案

尝试#2 ...如何使用

Try #2... How about using a Exchange Pickup Folder instead? They are a faster way to send emails through Exchange because it just creates the email and drops it in the folder, no waiting to connect to the server or waiting for a reply. Plus I think it skips the whole relay issue.

像这样配置您的SmtpClient:

Configure youur SmtpClient like so:

SmtpClient srv = new SmtpClient("exchsrv2007", 25) {
    DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory,
    PickupDirectoryLocation = "\\exchsrv2007\PickupFolder"
}
...

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