您好 我已编写代码在asp.net中发送邮件如下：
MailMessage mailMessage = new MailMessage();
mailMessage.From = "xyz@gmail.com";
mailMessage.To = "abc@gmail.com";
mailMessage.Subject = "test";
mailMessage.BodyFormat = MailFormat.Text;
mailMessage.Body = "this is a test mail...";
//mailMessage.Priority = MailPriority.High;
SmtpMail.SmtpServer = "localhost";
SmtpMail.Send(mailMessage);
lblStatus.Text = "Your mail was sent";
我的web.config文件如下
<?xml version="1.0"?>
<!--
Note: As an alternative to hand editing this file you can use the
web admin tool to configure settings for your application. Use
the Website->Asp.Net Configuration option in Visual Studio.
A full list of settings and comments can be found in
machine.config.comments usually located in
\Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration>
<configSections>
<sectionGroup name="system.web.extensions" type="System.Web.Configuration.SystemWebExtensionsSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<sectionGroup name="scripting" type="System.Web.Configuration.ScriptingSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="scriptResourceHandler" type="System.Web.Configuration.ScriptingScriptResourceHandlerSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<sectionGroup name="webServices" type="System.Web.Configuration.ScriptingWebServicesSectionGroup, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
<section name="jsonSerialization" type="System.Web.Configuration.ScriptingJsonSerializationSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="Everywhere"/>
<section name="profileService" type="System.Web.Configuration.ScriptingProfileServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="authenticationService" type="System.Web.Configuration.ScriptingAuthenticationServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
<section name="roleService" type="System.Web.Configuration.ScriptingRoleServiceSection, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" allowDefinition="MachineToApplication"/>
</sectionGroup>
</sectionGroup>
</sectionGroup>
</configSections>
<system.net>
<mailsettings>
<smtp deliverymethod="Network">
<network host="localhost" port="25" defaultcredentials="true" />
</smtp>
</mailsettings>
</system.net>
<appSettings>
<add key="ConnectionString" value="server=W2K8SERVER;database=Quiz;uid=sa;pwd=Alpha#123"/>
<add key="Delay" value="1800000"/>
</appSettings>
<connectionStrings>
<add name="QuizConnectionString" connectionString="Data Source=W2K8SERVER;Initial Catalog=Quiz;User ID=sa;Password=Alpha#123"
providerName="System.Data.SqlClient" />
</connectionStrings>
<system.web>
<!--
Set compilation debug="true" to insert debugging
symbols into the compiled page. Because this
affects performance, set this value to true only
during development.
-->
<compilation debug="true">
<assemblies>
<add assembly="System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add assembly="System.Data.DataSetExtensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
<add assembly="System.Xml.Linq, Version=3.5.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089"/>
</assemblies>
</compilation>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows"/>
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
<pages>
<controls>
<add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</controls>
</pages>
<httpHandlers>
<remove verb="*" path="*.asmx"/>
<add verb="*" path="*.asmx" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add verb="*" path="*_AppService.axd" validate="false" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" validate="false"/>
</httpHandlers>
<httpModules>
<add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</httpModules>
</system.web>
<system.codedom>
<compilers>
<compiler language="c#;cs;csharp" extension=".cs" warningLevel="4" type="Microsoft.CSharp.CSharpCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<providerOption name="CompilerVersion" value="v3.5"/>
<providerOption name="WarnAsError" value="false"/>
</compiler>
<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" warningLevel="4" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
<providerOption name="CompilerVersion" value="v3.5"/>
<providerOption name="OptionInfer" value="true"/>
<providerOption name="WarnAsError" value="false"/>
</compiler>
</compilers>
</system.codedom>
<!--
The system.webServer section is required for running ASP.NET AJAX under Internet
Information Services 7.0. It is not necessary for previous version of IIS.
-->
<system.webServer>
<validation validateIntegratedModeConfiguration="false"/>
<modules>
<remove name="ScriptModule"/>
<add name="ScriptModule" preCondition="managedHandler" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</modules>
<handlers>
<remove name="WebServiceHandlerFactory-Integrated"/>
<remove name="ScriptHandlerFactory"/>
<remove name="ScriptHandlerFactoryAppServices"/>
<remove name="ScriptResource"/>
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</handlers>
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Extensions" publicKeyToken="31bf3856ad364e35"/>
<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Extensions.Design" publicKeyToken="31bf3856ad364e35"/>
<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="3.5.0.0"/>
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
但它的给出错误：无法识别的配置部分System.net/mailsettings。 我应该做些什么改变？ Asp.net c＃ 谢谢。
答案 0 :(得分：1)
错误“无法识别的配置部分System.net / mailsettings”的原因是由于<mailSettings>的拼写错误（您需要设置上的资本S - xml区分大小写）。
web.config中的此标记应显示为<configuration> ...</configuration>根元素的直接子元素。这是一段简单的代码：
<configuration>
<system.net>
<mailSettings>
<smtp deliveryMethod="SpecifiedPickupDirectory">
<specifiedPickupDirectory pickupDirectoryLocation="C:\inetpub\wwwroot\MyDevWebsite\aEmailPickupFolder" />
</smtp>
</mailSettings>
</system.net>
</configuration>
可以在MSDN site here上找到关于web.config这个元素的官方文档。
答案 1 :(得分：0)
这是我的邮件程序类：
using System;
using System.Linq;
using System.Net.Mail;
using System.Text;
using System.Threading;
namespace Utils.Mailer
{
public static class MailSender
{
/// <summary>
/// Sends a MailMessage object using the SMTP settings.
/// </summary>
public static void SendMailMessage(MailMessage message)
{
if (!Settings.Instance.SendEmails)
{
return;
}
if (message == null)
throw new ArgumentNullException("message");
try
{
message.IsBodyHtml = true;
message.BodyEncoding = Encoding.UTF8;
var smtp = new SmtpClient("myserver");
// don't send credentials if a server doesn't require it,
// linux smtp servers don't like that
if (!string.IsNullOrEmpty("myuser"))
{
smtp.Credentials = new System.Net.NetworkCredential("myuser", "mypass");
}
smtp.Port = 25;
smtp.EnableSsl = true;
smtp.Send(message);
}
catch (SmtpException)
{
//OnEmailFailed(message);
}
finally
{
// Remove the pointer to the message object so the GC can close the thread.
message.Dispose();
}
}
/// <summary>
/// Sends the mail message asynchronously in another thread.
/// </summary>
/// <param name="message">The message to send.</param>
public static void SendMailMessageAsync(MailMessage message)
{
ThreadPool.QueueUserWorkItem(state => SendMailMessage(message));
}
}
}
答案 2 :(得分：0)
看起来这个功能/配置部分是在.NET 2.0中添加的。确保您的站点的应用程序池设置为至少2.0框架。 IIS＆gt;＆gt;应用程序池＆gt;＆gt;找到分配给您网站的那个＆gt;＆gt;双击＆gt;＆gt; .net框架版本。
来自MSDN的（请参阅顶部的下拉菜单，未列出1）
答案 3 :(得分：0)
public static string sendMail(string to, string title, string subject, string body)
{
try
{
MailMessage mail = new MailMessage();
SmtpClient smtp = new SmtpClient();
if (to == "")
to = "aevalencia119@gmail.com";
MailAddressCollection m = new MailAddressCollection();
m.Add(to);
mail.Subject = subject;
mail.From = new MailAddress( "aevalencia119@gmail.com");
mail.Body = body;
mail.IsBodyHtml = true;
mail.ReplyTo = new MailAddress("aevalencia119@gmail.com");
mail.To.Add(m[0]);
smtp.Host = "smtp.gmail.com";
client.Port = 587;//25
smtp.EnableSsl = true;
smtp.Credentials = new System.Net.NetworkCredential("aevalencia119@gmail.com", "####");
ServicePointManager.ServerCertificateValidationCallback = delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };
smtp.Send(mail);
return "done";
}
catch (Exception ex)
{
return ex.Message;
}
}
答案 4 :(得分：0)
尝试在web.config文件的Configuration部分下使用它：
<system.net>
<mailsettings>
<smtp deliverymethod="Network" from="putFromEmail">
<network host="localhost" port="25" defaultcredentials="true" />
</smtp>
</mailsettings>
</system.net>
答案 5 :(得分：0)
public static string sendMail(string to, string title, string subject, string body)
{
try
{
MailMessage mail = new MailMessage();
SmtpClient smtp = new SmtpClient();
if (to == "")
to = "aevalencia119@gmail.com";
MailAddressCollection m = new MailAddressCollection();
m.Add(to);
mail.Subject = subject;
mail.From = new MailAddress( "aevalencia119@gmail.com");
mail.Body = body;
mail.IsBodyHtml = true;
mail.ReplyTo = new MailAddress("aevalencia119@gmail.com");
mail.To.Add(m[0]);
smtp.Host = "smtp.gmail.com";
client.Port = 587;//25
smtp.EnableSsl = true;
smtp.Credentials = new System.Net.NetworkCredential("aevalencia119@gmail.com", "####");
ServicePointManager.ServerCertificateValidationCallback = delegate(object s, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };
smtp.Send(mail);
return "done";
}
catch (Exception ex)
{
return ex.Message;
}
}
答案 6 :(得分：0)
查看以下链接，可以帮助您