Specifies the smtp user authentication mechanism.
[Visual Basic] Public Enum SmtpAuthType
[C#] public enum SmtpAuthType
[C++] __value public enum SmtpAuthType
[JScript] public enum SmtpAuthType
Members
| Members name | Description |
| AuthAuto | Specifies that the smtp client selects the authentication mechanism automatically. (default and recommanded) |
| AuthLogin | Specifies that the smtp server uses AUTH LOGIN mechanism. |
| AuthPlain | Specifies that the smtp server uses AUTH PLAIN mechanism. |
| AuthCRAM5 | Specifies that the smtp server uses AUTH CRAM-MD5 mechanism. |
| AuthNTLM | Specifies that the smtp server uses AUTH NTLM mechanism. |
| AuthMSN | Specifies that the smtp server uses AUTH MSN mechanism. |
| XOAUTH2 | Specifies that the smtp server uses Gmail OAUTH mechanism. |
Remarks
By default, EASendMail detects SMTP server authentication mechanism automatically.
XOAUTH2 is used for Gmail OAUTH, please use Gmail OAUTH access_token as the password. For more detail, please refer to Using Gmail SMTP OAUTH section.
Example
[Visual Basic, C#, C++] To get the full samples of EASendMail, please refer to Samples section.
[VB - Send Email using SMTP Server with user authentication]
Imports EASendMail
Sub SendMail()
Try
Dim oServer As SmtpServer = New SmtpServer("smtp.adminsystem.com")
' set user authentication
oServer.User = "myuser@adminsystem.com"
oServer.Password = "mypassword"
' specifies the authentication mechanism, AuthAuto is default value
' oSmtp.AuthType = SmtpAuthType.AuthAuto
' Most mordern SMTP servers require SSL/TLS connection now.
' ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
oServer.ConnectType = SmtpConnectType.ConnectTryTLS
' set SSL/TLS connection
' oServer.ConnectType = SmtpConnectType.ConnectSSLAuto
' set SMTP server port to 587, default value is 25
' oServer.Port = 587
' set SMTP server port to 465,
' if 465 port is used, ConnectType should use ConnectSSLAuto or ConnectDirectSSL.
' oServer.Port = 465
' set helo domain, default value is current machine name
' oServer.HeloDomain = "mymachine.com"
Dim oMail As SmtpMail = New SmtpMail("TryIt")
oMail.From = New MailAddress("from@adminsystem.com")
oMail.To.Add(New MailAddress("to@adminsystem.com"))
oMail.Subject = "test email sent from VB"
oMail.TextBody = "test body"
Dim oSmtp As SmtpClient = New SmtpClient()
oSmtp.SendMail(oServer, oMail)
Console.WriteLine("This email has been submitted to server successfully!")
Catch exp As Exception
Console.WriteLine("Exception: {0}", exp.Message)
End Try
End Sub
[C# - Send Email using SMTP Server with user authentication]
using System;
using EASendMail;
void SendMail()
{
try
{
// SMTP server address
SmtpServer oServer = new SmtpServer("smtp.adminsystem.com");
// SMTP user authentication
oServer.User = "myusername";
oServer.Password = "mypassword";
// specifies the authentication mechanism, AuthAuto is default value
// oSmtp.AuthType = SmtpAuthType.AuthAuto;
// Most mordern SMTP servers require SSL/TLS connection now.
// ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
oServer.ConnectType = SmtpConnectType.ConnectTryTLS;
// set SSL/TLS connection
// oServer.ConnectType = SmtpConnectType.ConnectSSLAuto;
// set SMTP server port to 587, default value is 25
// oServer.Port = 587;
// set SMTP server port to 465,
// if 465 port is used, ConnectType should use ConnectSSLAuto or ConnectDirectSSL.
// oServer.Port = 465;
// set helo domain, default value is current machine name
// oServer.HeloDomain = "mymachine.com";
SmtpMail oMail = new SmtpMail("TryIt");
oMail.From = new MailAddress("from@adminsystem.com");
oMail.To.Add(new MailAddress("to@adminsystem.com"));
oMail.Subject = "test email sent from C#";
oMail.TextBody = "test body";
SmtpClient oSmtp = new SmtpClient();
oSmtp.SendMail(oServer, oMail);
Console.WriteLine("This email has been submitted to server successfully!");
}
catch(Exception exp)
{
Console.WriteLine("Exception: {0}", exp.Message);
}
}
[C++/CLI - Send Email using SMTP Server with user authentication
using namespace System;
using namespace EASendMail;
void SendMail()
{
try
{
// SMTP server address
SmtpServer ^oServer = gcnew SmtpServer("smtp.adminsystem.com");
// SMTP user authentication
oServer->User = "myusername";
oServer->Password = "mypassword";
// specifies the authentication mechanism, AuthAuto is default value
// oSmtp.AuthType = SmtpAuthType::AuthAuto;
// Most mordern SMTP servers require SSL/TLS connection now.
// ConnectTryTLS means if server supports SSL/TLS, SSL/TLS will be used automatically.
oServer->ConnectType = SmtpConnectType::ConnectTryTLS;
// set SSL/TLS connection
// oServer->ConnectType = SmtpConnectType::ConnectSSLAuto;
// set SMTP server port to 587, default value is 25
// oServer->Port = 587;
// set SMTP server port to 465,
// if 465 port is used, ConnectType should use ConnectSSLAuto or ConnectDirectSSL.
// oServer->Port = 465;
// set helo domain, default value is current machine name
// oServer->HeloDomain = "mymachine.com";
SmtpMail ^oMail = gcnew SmtpMail("TryIt");
oMail->From = gcnew MailAddress("from@adminsystem.com");
oMail->To->Add(gcnew MailAddress("to@adminsystem.com"));
oMail->Subject = "test email sent from C++/CLI";
oMail->TextBody = "test body";
SmtpClient ^oSmtp = gcnew SmtpClient();
oSmtp->SendMail(oServer, oMail);
Console::WriteLine("This email has been submitted to server successfully!");
}
catch(Exception ^exp)
{
Console::WriteLine("Exception: {0}", exp->Message);
}
}
See Also
User Authentication and SSL Connection
From, ReplyTo, Sender and Return-Path
Process Bounced Email (Non-Delivery Report) and Email Tracking
Online Tutorial
Send Email over SSL/TLS in C#
Send Email using Gmail in C#
Send Email using Yahoo in C#
Send Email using Hotmail/Live in C#
Send Email over SSL/TLS in VB
Send Email using Gmail in VB
Send Email using Yahoo in VB
Send Email using Hotmail/Live in VB
Send Email over SSL/TLS in C++/CLI
Send Email using Gmail in C++/CLI
Send Email using Yahoo in C++/CLI
Send Email using Hotmail/Live in C++/CLI