C#邮件发送问题（一）

usingLumiSoft.Net.SMTP.Client;
usingLumiSoft.Net.AUTH;
usingLumiSoft.Net.Mail;
usingLumiSoft.Net.MIME;
publicclassUseLumiSoft:ISendMail
{
privateSMTP_ClientHost{get;set;}
privateMail_MessageMail{get;set;}

publicvoidCreateHost(ConfigHosthost)
{
Host=newSMTP_Client();
Host.Connect(host.Server,host.Port,host.EnableSsl);
Host.EhloHelo(host.Server);
Host.Auth(Host.AuthGetStrongestMethod(host.Username,host.Password));
}

publicvoidCreateMail(ConfigMailmail)
{
Mail=newMail_Message();
Mail.Subject=mail.Subject;
Mail.From=newMail_t_MailboxList();
Mail.From.Add(newMail_t_Mailbox(mail.From,mail.From));
Mail.To=newMail_t_AddressList();
foreach(vartoinmail.To)
{
Mail.To.Add(newMail_t_Mailbox(to,to));
}
varbody=newMIME_b_Text(MIME_MediaTypes.Text.html);
Mail.Body=body;//Needtobeassignedfirstorwillthrow"Bodymustbeboundedtosomeentityfirst"exception.
body.SetText(MIME_TransferEncodings.Base64,Encoding.UTF8,mail.Body);
}

publicvoidCreateMultiMail(ConfigMailmail)
{
CreateMail(mail);

varcontentTypeMixed=newMIME_h_ContentType(MIME_MediaTypes.Multipart.mixed);
contentTypeMixed.Param_Boundary=Guid.NewGuid().ToString().Replace("-","_");
varmultipartMixed=newMIME_b_MultipartMixed(contentTypeMixed);
Mail.Body=multipartMixed;

//Createaentitytoholdmultipart/alternativebody
varentityAlternative=newMIME_Entity();
varcontentTypeAlternative=newMIME_h_ContentType(MIME_MediaTypes.Multipart.alternative);
contentTypeAlternative.Param_Boundary=Guid.NewGuid().ToString().Replace("-","_");
varmultipartAlternative=newMIME_b_MultipartAlternative(contentTypeAlternative);
entityAlternative.Body=multipartAlternative;
multipartMixed.BodyParts.Add(entityAlternative);

varentityTextPlain=newMIME_Entity();
varplain=newMIME_b_Text(MIME_MediaTypes.Text.plain);
entityTextPlain.Body=plain;
plain.SetText(MIME_TransferEncodings.Base64,Encoding.UTF8,"Ifyouseethismessage,itmeansthatyourmailclientdoesnotsupporthtml.");
multipartAlternative.BodyParts.Add(entityTextPlain);

varentityTextHtml=newMIME_Entity();
varhtml=newMIME_b_Text(MIME_MediaTypes.Text.html);
entityTextHtml.Body=html;
html.SetText(MIME_TransferEncodings.Base64,Encoding.UTF8,mail.Body);
multipartAlternative.BodyParts.Add(entityTextHtml);

foreach(stringattachmentinmail.Attachments)
{
multipartMixed.BodyParts.Add(Mail_Message.CreateAttachment(attachment));
}

foreach(stringresourceinmail.Resources)
{
varentity=newMIME_Entity();
entity.ContentDisposition=newMIME_h_ContentDisposition(MIME_DispositionTypes.Inline);
entity.ContentID=Convert.ToBase64String(Encoding.Default.GetBytes(Path.GetFileName(resource)));//eg.<imgsrc="cid:ContentID"/>
varimage=newMIME_b_Image(MIME_MediaTypes.Image.jpeg);
entity.Body=image;
image.SetDataFromFile(resource,MIME_TransferEncodings.Base64);
multipartMixed.BodyParts.Add(entity);
}
}

publicvoidSendMail()
{
if(Host!=null&&Mail!=null)
{
foreach(Mail_t_MailboxfrominMail.From.ToArray())
{
Host.MailFrom(from.Address,-1);
}
foreach(Mail_t_MailboxtoinMail.To)
{
Host.RcptTo(to.Address);
}
using(varstream=newMemoryStream())
{
Mail.ToStream(stream,newMIME_Encoding_EncodedWord(MIME_EncodedWordEncoding.Q,Encoding.UTF8),Encoding.UTF8);
stream.Position=0;//Needtoberesetto0,otherwisenothingwillbesent;
Host.SendMessage(stream);
Host.Disconnect();
}
}
else
thrownewException("Theseisnotahosttosendmailorthereisnotamailneedtobesent.");
}
}

classProgram
{
staticvoidMain(string[]args)
{varh1=newConfigHost()
{
Server="smtp.gmail.com",
Port=465,
Username="******@gmail.com",
Password="******",
EnableSsl=true
};

varm1=newConfigMail()
{
Subject="Test",
Body="Justatest.",
From="******@gmail.com",
To=newstring[]{"******@gmail.com"},

};

varagents=newList<ISendMail>(){newUseNetMail(),newUseOpenSmtp(),newUseLumiSoft()};
foreach(varagentinagents)
{
varoutput="Sendm1viah1"+agent.GetType().Name+"";
Console.WriteLine(output+"start");
try
{
agent.CreateHost(h1);
m1.Subject=output;
agent.CreateMail(m1);
agent.SendMail();
Console.WriteLine(output+"success");
}
catch(Exceptionex)
{
Console.WriteLine(ex.Message);
}
Console.WriteLine(output+"end");
Console.WriteLine("-----------------------------------");
}
Console.Read();
}
}

>telnetsmtp.gmail.com587
220mx.google.comESMTPo5sm40420786eeg.8-gsmtp
EHLOg1
250-mx.google.comatyourservice,[173.231.8.212]
250-SIZE35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250CHUNKING
AUTHLOGIN
5305.7.0MustissueaSTARTTLScommandfirst.o5sm40420786eeg.8–gsmtpSTARTTLS220

STARTTLS

2.0.0ReadytostartTLS

…

QUIT

classProgram
{
staticvoidMain(string[]args)
{
varh2=newConfigHost()
{
Server="smtp.163.com",
Port=25,
Username="******@163.com",
Password="******",
EnableSsl=false
};
varm2=newConfigMail()
{
Subject="Test",
Body="Justatest.<br/><imgsrc='cid:"+Convert.ToBase64String(Encoding.Default.GetBytes("Resource.jpg"))+"'alt=''/>",

From="******@163.com",
To=newstring[]{"******@163.com"},

Attachments=newstring[]{@"E:\Test\SendMail\Attachment.pdf"},

Resources=newstring[]{@"E:\Test\SendMail\Resource.jpg"}
};
varagents=newList<ISendMail>(){newUseNetMail(),newUseOpenSmtp(),newUseLumiSoft()};
foreach(varagentinagents)
{
varoutput="Sendm2viah2"+agent.GetType().Name+"";
Console.WriteLine(output+"start");
try
{
agent.CreateHost(h2);
m2.Subject=output;
agent.CreateMultiMail(m2);
agent.SendMail();
Console.WriteLine(output+"success");
}
catch(Exceptionex)
{
Console.WriteLine(ex.Message);
}
Console.WriteLine(output+"end");
Console.WriteLine("-----------------------------------");
}
Console.Read();
}
}