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我正在尝试开发一个发送电子邮件的应用程序，我们的内部网络被锁定得很紧，所以我无法使用我们的内部邮件服务器进行中继。

有没有人用过 no-ip.com 之类的东西？还有其他选择吗？

4

5 回答 5

4

如果您只需要检查电子邮件是否发送到正确的地址和正确的内容，最简单的方法是通过编辑 app 或 web.config 文件来使用 drop 文件夹：

  <system.net>
    <mailSettings>
      <smtp deliveryMethod="SpecifiedPickupDirectory" from="me@myorg.com">
        <specifiedPickupDirectory pickupDirectoryLocation="C:\TestMailDrop"/>
      </smtp>
    </mailSettings>
  </system.net>

这将导致电子邮件被创建为指定目录中的文件。您甚至可以加载文件并在单元测试中验证它们。

（正如 codekaizen 指出的那样，如果您不介意修改代码/硬编码放置文件夹并且在调试/发布模式下行为不同，这也可以在代码中完成。）

于 2010-02-04T18:17:44.483 回答
2

您可以将电子邮件保存到磁盘：

#if DEBUG
smtpClient.PickupDirectoryLocation = "\\Path\\to\\save\\folder";
smtpClient.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory;
smtpClient.Send(msg);
#endif
于 2010-02-04T18:16:40.583 回答
1

使用AutoFixture.xUnit [以该名称作为 XUnit 包可用] 从@codekaizen 中提取：-

    [Theory, AutoData]
    public static void ShouldSendWithCorrectValues( string anonymousFrom, string anonymousRecipients, string anonymousSubject, string anonymousBody )
    {
        anonymousFrom += "@b.com";
        anonymousRecipients += "@c.com";

        using ( var tempDir = new TemporaryDirectoryFixture() )
        {
            var capturingSmtpClient = new CapturingSmtpClientFixture( tempDir.DirectoryPath );
            var sut = new EmailSender( capturingSmtpClient.SmtpClient );

            sut.Send( anonymousFrom, anonymousRecipients, anonymousSubject, anonymousBody );
            string expectedSingleFilename = capturingSmtpClient.EnumeratePickedUpFiles().Single();
            var result = File.ReadAllText( expectedSingleFilename );

            Assert.Contains( "From: " + anonymousFrom, result );
            Assert.Contains( "To: " + anonymousRecipients, result );
            Assert.Contains( "Subject: " + anonymousSubject, result );
            Assert.Contains( anonymousBody, result );
        }
    }

CapturingSmtpClientFixture仅在测试上下文中使用-

    class CapturingSmtpClientFixture
    {
        readonly string _path;
        readonly SmtpClient _smtpClient;

        public CapturingSmtpClientFixture( string path )
        {
            _path = path;
            _smtpClient = new SmtpClient { DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory, PickupDirectoryLocation = _path };
        }

        public SmtpClient SmtpClient
        {
            get { return _smtpClient; }
        }

        public IEnumerable<string> EnumeratePickedUpFiles()
        {
            return Directory.EnumerateFiles( _path );
        }
    }

然后，您需要做的就是确保您的实际代码提供了一个SmtpClient已与适用于实时 SMTP 服务器的参数连接起来的代码。

（为了完整起见，这里是TemporaryDirectoryFixture）：-

public class TemporaryDirectoryFixture : IDisposable
{
    readonly string _directoryPath;

    public TemporaryDirectoryFixture()
    {
        string randomDirectoryName = Path.GetFileNameWithoutExtension( Path.GetRandomFileName() );

        _directoryPath = Path.Combine( Path.GetTempPath(), randomDirectoryName );

        Directory.CreateDirectory( DirectoryPath );
    }

    public string DirectoryPath
    {
        get { return _directoryPath; }
    }

    public void Dispose()
    {
        try
        {
            if ( Directory.Exists( _directoryPath ) )
                Directory.Delete( _directoryPath, true );
        }
        catch ( IOException )
        {
            // Give other process a chance to release their handles
            // see http://stackoverflow.com/questions/329355/cannot-delete-directory-with-directory-deletepath-true/1703799#1703799
            Thread.Sleep( 0 );
            try
            {
                Directory.Delete( _directoryPath, true );
            }
            catch
            {
                var longDelayS = 2;
                try
                {
                    // This time we'll have to be _really_ patient
                    Thread.Sleep( TimeSpan.FromSeconds( longDelayS ) );
                    Directory.Delete( _directoryPath, true );
                }
                catch ( Exception ex )
                {
                    throw new Exception( @"Could not delete " + GetType() + @" directory: """ + _directoryPath + @""" due to locking, even after " + longDelayS + " seconds", ex );
                }
            }
        }
    }
}

和骨架EmailSender：

public class EmailSender
{
    readonly SmtpClient _smtpClient;

    public EmailSender( SmtpClient smtpClient )
    {
        if ( smtpClient == null )
            throw new ArgumentNullException( "smtpClient" );

        _smtpClient = smtpClient;
    }

    public void Send( string from, string recipients, string subject, string body )
    {
        _smtpClient.Send( from, recipients, subject, body );
    }
}
于 2012-08-10T11:30:34.773 回答
0

通常的答案是在 IIS 下本地运行 SMTP，但您需要小心发送给谁。实际上，最好发送到您常用的 SMTP 服务器并仅针对您域中的帐户。

于 2010-02-04T18:01:40.447 回答