ANSMTP SMTP COMPONENT SDK DOCUMENTATION

SSL_starttls Property

This property specifies whether current connection uses STARTTLS command to enable SSL/TLS.

Data Type: Long

Value	Meaning
0	Direct SSL/TLS
1	STARTTLS(default)

Remarks

Usually, there are two ways to deploy SMTP server to SSL/TLS, one is deploying SMTP port as direct SSL/TLS connection, another way is switching connection from normal channel to SSL/TLS channel by STARTTLS command(rfc 2487). Therefore, you should choose the appropriate value for SSL_starttls property upon your SMTP server configuration.

Usage Example:

[Visual Basic]

'connect SSL/TLS by STARTTLS command
Dim oSmtp As AOSMTPLib.Mail
Set oSmtp = new AOSMTPLib.Mail 
'Before using Mail, RegisterKey must be assigned.
oSmtp.RegisterKey = "your license code" 
oSmtp.SSL_registerkey = "your SSL/TLS license code" 

If oSmtp.SSL_init() <> 0 Then
  MsgBox "initialize ansslplus failed"
End If

oSmtp.SSL_starttls = 1
oSmtp.Subject = "test for ssl"
oSmtp.BodyText = "test body"

oSmtp.FromAddr = "test@adminsystem.net"
oSmtp.AddRecipient "Support Team", "Support@AdminSystem.NET", 0 

If oSmtp.SendMail() = 0 Then
  MsgBox "Message delivered"
Else
  MsgBox oSmtp.GetLastErrDescription()
End If

oSmtp.SSL_uninit()

'connect SSL/TLS by direct SSL/TLS
Dim oSmtp As AOSMTPLib.Mail
Set oSmtp = new AOSMTPLib.Mail 
'Before using Mail, RegisterKey must be assigned.
oSmtp.RegisterKey = "your license code" 
oSmtp.SSL_registerkey = "your SSL/TLS license code" 

If oSmtp.SSL_init() <> 0 Then
  MsgBox "initialize ansslplus failed"
End If

oSmtp.SSL_starttls = 0
'SMTP server usually uses 465 as the alone SSL/TLS port
oSmtp.ServerPort = 465 
oSmtp.Subject = "test for ssl"
oSmtp.BodyText = "test body"

oSmtp.FromAddr = "test@adminsystem.net"
oSmtp.AddRecipient "Support Team", "Support@AdminSystem.NET", 0 

If oSmtp.SendMail() = 0 Then
  MsgBox "Message delivered"
Else
  MsgBox oSmtp.GetLastErrDescription()
End If

oSmtp.SSL_uninit()

[C#]

//connect SSL/TLS by STARTTLS command
AOSMTPLib.MailClass oSmtp = new AOSMTPLib.MailClass();
//Before using Mail, RegisterKey must be assigned.
oSmtp.RegisterKey = "your license code";
oSmtp.SSL_registerkey = "your SSL/TLS license code"; 

if( oSmtp.SSL_init() != 0 ) 
{
  Console.WriteLine( "initialize ansslplus failed" );
}

oSmtp.SSL_starttls = 1;
oSmtp.Subject = "test for ssl";
oSmtp.BodyText = "test body";

oSmtp.FromAddr = "test@adminsystem.net";
oSmtp.AddRecipient("Support Team", "Support@AdminSystem.NET", 0); 

if( oSmtp.SendMail() == 0 )
  Console.WriteLine( "Message delivered" );
else
  Console.WriteLine( oSmtp.GetLastErrDescription());

oSmtp.SSL_uninit();

//connect SSL/TLS by direct SSL/TLS port
AOSMTPLib.MailClass oSmtp = new AOSMTPLib.MailClass();
//Before using Mail, RegisterKey must be assigned.
oSmtp.RegisterKey = "your license code";
oSmtp.SSL_registerkey = "your SSL/TLS license code"; 

if( oSmtp.SSL_init() != 0 ) 
{
  Console.WriteLine( "initialize ansslplus failed" );
}

oSmtp.SSL_starttls = 0;
//SMTP server usually uses 465 as the alone SSL/TLS port
oSmtp.ServerPort = 465; 
oSmtp.Subject = "test for ssl";
oSmtp.BodyText = "test body";

oSmtp.FromAddr = "test@adminsystem.net";
oSmtp.AddRecipient("Support Team", "Support@AdminSystem.NET", 0); 

if( oSmtp.SendMail() == 0 )
  Console.WriteLine( "Message delivered" );
else
  Console.WriteLine( oSmtp.GetLastErrDescription());

oSmtp.SSL_uninit();

See Also

ANSMTP License