ANPOP POP3 COMPONENT SDK DOCUMENTATION

SSL_stls Property

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

Data Type: Long

Value	Meaning
0	Direct SSL/TLS(default)
1	STLS (this value is not available for IMAP4 server.)

Remarks

Usually, there are two ways to deploy POP3 server to SSL/TLS, one is deploying POP3 port as direct SSL/TLS connection, another way is switching connection from normal channel to SSL/TLS channel by STLS command(rfc 2595). Therefore, you should choose the appropriate value for SSL_stls property upon your POP3 server configuration.

Usage Example

[Visual Basic]

Sub SSL_direct_connect()
  Dim oPop3 As New ANPOPLib.POPMAIN
  oPop3.SSL_stls = 0
  ''POP3 servers usually use this port as alone SSL/TLS port
  oPop3.ServerPort = 995
  
  ''To connect IMAP4 server by SSL, please using the following code.
  'oPop3.ServerPort = 993
  'oPop3.IMAP4Connection = 1
  
  If oPop3.SSL_init() <> 0 Then
    MsgBox "initialize ansslplus failed"
    Exit Sub
  End If

  If oPop3.Connect( "pop3.email.com", "John", "John123" ) = 0 Then
    MsgBox "Connected"
  Else
    MsgBox "Failed"
  End If
End If

Sub SSL_stls_connect()
  Dim oPop3 As New ANPOPLib.POPMAIN
  oPop3.SSL_stls = 1
  If oPop3.SSL_init() <> 0 Then
    MsgBox "initialize ansslplus failed"
    Exit Sub
  End If

  If oPop3.Connect( "pop3.email.com", "John", "John123" ) = 0 Then
    MsgBox "Connected"
  Else
    MsgBox "Failed"
  End If
End If