使用 c# 从 Web.Config 文件访问 SMTP 邮件设置

Question

Need to read my SMTP email settings defined under system.net section in my web.config file.

Below is one example of SMTP email setting defined in web.config file: (Under Section)

<system.net>
<mailSettings>
<smtp deliveryMethod="Network" from="testuser@domail.com">
<network defaultCredentials="true" host="localhost" port="25" userName="user” password="testPassword"/>
</smtp>
</mailSettings>
</system.net>

How to Access the SMTP Mail Setting by using c#

Answer 1

Just use the System.Net.Mail classes to send your e-mails. It will automagically pick-up the Mail setting from your web.config.

Answer 2

You can use the WebConfigurationManager:

Configuration configurationFile = WebConfigurationManager.OpenWebConfiguration(Request.ApplicationPath);
MailSettingsSectionGroup mailSettings = configurationFile.GetSectionGroup("system.net/mailSettings") as MailSettingsSectionGroup;

Response.Write(mailSettings.Smtp.Network.Host);

Answer 3

Related...If you're accessing from both a website and an application this code can come in handy.

Configuration config;

bool isWebApp = HttpRuntime.AppDomainAppId != null;

if (isWebApp)
{
    config = WebConfigurationManager.OpenWebConfiguration(HttpContext.Current.Request.ApplicationPath);
}
else
{
    config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
}

var mailSettings = config.GetSectionGroup("system.net/mailSettings") as MailSettingsSectionGroup;    

Answer 4

You can use this code

Response.Write(ConfigurationManager.GetSection("system.net/mailSettings/smtp").Network.UserName)
Response.Write(ConfigurationManager.GetSection("system.net/mailSettings/smtp").Network.Host)
Response.Write(ConfigurationManager.GetSection("system.net/mailSettings/smtp").Network.Password)