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[英]SQL Server 2012 connection string works fine in classic ASP (VBScript) but doesn't work in ASP.NET C# project
[英]CDO works in VBScript, but doesn't work in C#
我有一個VBScript文件來發送電子郵件,它工作正常,但是當我使用相同的CDO設置創建C#程序(.Net 4.5)時,
傳輸無法連接到服務器。
請檢查我的C#有什么問題。
VBScript:
Dim objMessage
Set objMessage = CreateObject("CDO.Message")
objMessage.Subject = Subj
objMessage.From = Sender
objMessage.To = Receivers
objMessage.TextBody = Body
objMessage.Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
objMessage.Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = ServerName
objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60
objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = 2
objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/sendusername") = ""
objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/sendpassword") = ""
objMessage.Configuration.Fields.Item ("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = False
objMessage.Configuration.Fields.Update
objMessage.Send
C#:
using System.Net.Mail;
...
CDO.Message objMessage = new CDO.Message();
objMessage.Subject = Subj;
objMessage.From = Sender;
objMessage.To = Receivers;
objMessage.TextBody = Body;
ADODB.Field FieldSMTPSendUsing = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
FieldSMTPSendUsing.Value = 2;
ADODB.Field FieldSMTPServer = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/smtpserver"];
FieldSMTPServer.Value = ServerName;
ADODB.Field FieldSMTPServerPort = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/smtpserverport"];
FieldSMTPServerPort.Value = 25;
ADODB.Field FieldSMTPconnectiontimeout = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout"];
FieldSMTPconnectiontimeout.Value = 60 ;
ADODB.Field FieldSMTPauthenticate = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"];
FieldSMTPauthenticate.Value = 2;
ADODB.Field FieldSMTPsendusername = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/sendusername"];
FieldSMTPsendusername.Value = "";
ADODB.Field FieldSMTPsendpassword = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/sendpassword"];
FieldSMTPsendpassword.Value = "";
ADODB.Field FieldSMTPusessl = objMessage.Configuration.Fields["http://schemas.microsoft.com/cdo/configuration/smtpusessl"];
FieldSMTPusessl.Value = false;
objMessage.Configuration.Fields.Update();
objMessage.Send();
不要在C#中使用CDO。 使用MailMessage
類來編寫消息,並使用SmtpClient
類來發送消息。
MailMessage message = new MailMessage(Sender, Receivers, Subj, Body);
SmtpClient client = new SmtpClient(ServerName);
try {
client.Send(message);
} catch (Exception ex) {
Console.WriteLine("Cannot send message.");
}
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