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是否有任何图书馆可以免费使用,以便使用含蓄的 ssl规程进行电子邮件。我的主办者支持电子邮件......但标准电子邮件客户不能这样做。

Answer 1

系统。净额邮件确实支持“合法的SSL”(也称为“StartTLS”――通常在25或587港,但并非“简单的SSL”(“SMTPS”――通常在465港)。

As far as I know, explicit SSL starts from an unsecured connection, then the STARTTLS command is given and finally a SSL secured connection is made. Implicit SSL, on the other side, requires that the SSL connection is set up before the two parties start talking.

Some servers (like gmail) accept both, so you simply need to set EnableSsl to true and send to the right port. If your server does not support explict SSL, though, this "simple way" is not an option.

I m also still looking around for a general solution for using System.Net.Mail with implicit SSL, with no luck so far.

查询,可向您提供一些见解。

[edit: @Nikita is right, established port number to prevent/60/6]

Answer 2

使用TLS港口(即587个),而不是SSL港口。在我找到这一解决办法之前,我几个月也存在同样的问题。

Sending email in .NET through Gmail

Answer 3

http://msdn.microsoft.com/en-us/library/system.web.mailmessage.aspx”rel=“nofollow”System.Web.mail.Message,(并设置了http://schemas.microsoft.com/cdo/configuration/smtpussless”

System.Web.Mail.MailMessage mailMsg = new System.Web.Mail.MailMessage();
// ...
mailMsg.Fields.Add
            ("http://schemas.microsoft.com/cdo/configuration/smtpusessl",
                 true);



或者,如果你能够,你可以操作像stunnel。 在当地,从您的<代码> 当地东道/代码>向您的员工和管理当局协调署服务器建立SSL/TLS隧道。 然后,你通常(没有SSL/TLS)与隧道条码(<> 当地<>/代码>连接,作为你的员工和管理当局协调署服务器。

Answer 4

作为备选办法之一,我们的安全网包括:SMTP部分,该部分通过暗含和明确的SSL开展工作,并支持不同的认证机制(包括SASL、NTLM等)。

Answer 5

您可以使用AIM(Aegis 非法邮件)通过暗含的SSL发送电子邮件:

First install the package: Install-Package AIM

之后利用样本代码发送电子邮件

class Mail
{
    private static string mailAddress = "{you email address}";
    private static string host = "{your host server}";
    private static string userName = "{your user name}";
    private static string password = "{your password}";
    private static string userTo = "{to address}";
    private static void SendEmail(string subject, string message)
    {
        //Generate Message 
        var mailMessage = new MimeMailMessage();
        mailMessage.From = new MimeMailAddress(mailAddress);
        mailMessage.To.Add(userTo);
        mailMessage.Subject = subject;
        mailMessage.Body = message;

        //Create Smtp Client
        var mailer = new MimeMailer(host, 465);
        mailer.User = userName;
        mailer.Password = password;
        mailer.SslType = SslMode.Ssl;
        mailer.AuthenticationMode = AuthenticationType.Base64;

        //Set a delegate function for call back
        mailer.SendCompleted += compEvent;
        mailer.SendMailAsync(mailMessage);
    }

    //Call back function
    private static void compEvent(object sender, AsyncCompletedEventArgs e)
    {
        if (e.UserState != null)
            Console.Out.WriteLine(e.UserState.ToString());

        Console.Out.WriteLine("is it canceled? " + e.Cancelled);

        if (e.Error != null)
            Console.Out.WriteLine("Error : " + e.Error.Message);
    }
}

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