MailServer.SSLType Property

Gets or sets the SSL connection type (POP3/IMAP4/Exchange Web Service/WebDAV) for mail server.

[Visual Basic]
Public Property SSLType As SSLConnectType

[C#]
public SSLConnectType SSLType {get; set;}

[C++]
public: __property SSLConnectType get_SSLType();
public: __property void set_SSLType(SSLConnectType);

[JScript]
public function get SSLType() : SSLConnectType;
public function set SSLType(SSLConnectType);

Property Value

One of SSLConnectType values.

Remarks

SSL/TLS Connection

SSL connection encrypts data between the POP3 & IMAP4 component and mail server to protects user, password and email content in TCP/IP level. Now this technology is commonly used and many email servers are deployed with SSL such as gmail. The mail server usually deploys SSL on another port( POP3 on 995 or other port, IMAP4 on 993 or other port ), you may query it from your server administrator) directly. There are two ways to deploy SSL/TLS on POP3/IMAP4 server:

Deploying SSL on another port (POP3: 995, IMAP4: 993 or other port, you may query it from your server administrator) directly. This is most common way.
Using TLS command to switch SSL channel on normal POP3/IMAP4 port (110, 143);

TLS 1.2 Encryption

TLS is the successor of SSL, EAGetMail supports SSL 3.0/TLS1.0 - 1.2 very well. In EAGetMail, ConnectTLS doesn't mean TLS encryption, it means TLS command POP3/IMAP protocol.

You don't have to set any property to enable TLS 1.2 encryption. If your server requires TLS 1.2 encryption, TLS 1.2 encryption is used automatically with SSLConnectType.ConnectTLS, SSLConnectType.ConnectSSL or SSLConnectType.ConnectSSLAuto.

To enable TLS 1.2 on Windows 2008/2008 R2/7, please install this update:
https://www.microsoft.com/security/blog/2017/07/20/tls-1-2-support-added-to-windows-server-2008/

For Exchange Web Service/WebDAV, please always set SSLConnectType.ConnectSSLAuto

Example

[C# - SSL/TLS Setting]
//connect pop3 server by normal TCP/IP without SSL connection
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword",  false, 
    ServerAuthType.AuthLogin, ServerProtocol.Pop3);
 
//connect imap4 server by normal TCP/IP without SSL connection    
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", false, 
    ServerAuthType.AuthLogin, ServerProtocol.Imap4 );
    
//connect pop3 server by SSL connection on default port(995)
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.Pop3);
   
//connect imap4 server by SSL connection on default port(993) 
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.Imap4 );

//connect pop3 server by SSL connection on anther port(777)
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.Pop3);
oServer.Port = 777;

//connect imap4 server by SSL connection on anther port(778)
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.Pop3);
oServer.Port = 778;


// Exchange Web Service
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", false, 
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeEWS);

// Exchange WebDAV
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", false, 
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeWebDAV);


// Exchange Web Service SSL
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeEWS);

// Exchange WebDAV SSL
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeWebDAV);

// Retrieve email by SSL connection with STARTTLS or TLS command switching
// POP3 TLS
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.Pop3);
oServer.Port = 110;
oServer.SSLType = SSLConnectType.ConnectTLS;

// IMAP4 STARTTLS
MailServer oServer  = new MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol.Imap4);
oServer.Port = 143;
oServer.SSLType = SSLConnectType.ConnectTLS;

[VB - SSL/TLS Setting]
' Retrieve email by normal TCP/IP without SSL connection
' POP3
Dim oServer As New MailServer("myserveraddress", "myuser", "mypassword", _
     False, ServerAuthType.AuthLogin, ServerProtocol.Pop3)

' IMAP4
Dim oServer As New MailServer("myserveraddress", "myuser", "mypassword", _
    False, ServerAuthType.AuthLogin, ServerProtocol.Imap4)

' Retrieve email over SSL connection with direct SSL.
' POP3 SSL
Dim oServer As New MailServer("myserveraddress", "myuser", "mypassword", _ 
    True, ServerAuthType.AuthLogin, ServerProtocol.Pop3)
oServer.Port = 995

' IMAP4 SSL
Dim oServer As New MailServer("myserveraddress", "myuser", "mypassword", _ 
    True, ServerAuthType.AuthLogin, ServerProtocol.Imap4)
oServer.Port = 993

' Retrieve email by SSL connection with STARTTLS or TLS command switching
' POP3 TLS
Dim oServer As New MailServer("myserveraddress", "myuser", "mypassword", _
    True, ServerAuthType.AuthLogin, ServerProtocol.Pop3)
oServer.Port = 110
oServer.SSLType = SSLConnectType.ConnectTLS

' IMAP4 STARTTLS
Dim oServer As New MailServer("myserveraddress", "myuser", "mypassword", _
    True, ServerAuthType.AuthLogin, ServerProtocol.Imap4)
oServer.Port = 143
oServer.SSLType = SSLConnectType.ConnectTLS


' Exchange WebDAV
Dim oServer As New MailServer("myserveraddress", _
    "myuser", "mypassword", False,  _
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeWebDAV)

' Exchange Web Service SSL
Dim oServer As New MailServer("myserveraddress", _
    "myuser", "mypassword", True, _
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeEWS)

' Exchange WebDAV SSL
Dim oServer As New MailServer("myserveraddress", _ 
    "myuser", "mypassword", True, _ 
    ServerAuthType.AuthLogin, ServerProtocol.ExchangeWebDAV)

[C++/CLI - SSL/TLS Setting]
// Retrieve email by normal TCP/IP without SSL connection
// POP3
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
	"myuser", "mypassword", ServerProtocol::Pop3);

// IMAP4
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", ServerProtocol::Imap4);

// Retrieve email over SSL connection with direct SSL.
// POP3 SSL
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", ServerProtocol::Pop3);
oServer->SSLConnection = true;
oServer->Port = 995;

// IMAP4 SSL
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", ServerProtocol::Imap4);
oServer->SSLConnection = true;
oServer->Port = 993;

// Retrieve email by SSL connection with STARTTLS or TLS command switching
// POP3 TLS
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", ServerProtocol::Pop3);
oServer->SSLConnection = true;
oServer->Port = 110;
oServer->SSLType = SSLConnectType::ConnectTLS;

// IMAP4 STARTTLS
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", ServerProtocol::Imap4);
oServer->SSLConnection = true;
oServer->Port = 143;
oServer->SSLType = SSLConnectType::ConnectTLS;

// Exchange WebDAV
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", false, 
    ServerAuthType.AuthLogin, ServerProtocol::ExchangeWebDAV);

// Exchange Web Service SSL
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol::ExchangeEWS);

// Exchange WebDAV SSL
MailServer ^oServer  = gcnew MailServer("myserveraddress", 
    "myuser", "mypassword", true, 
    ServerAuthType.AuthLogin, ServerProtocol::ExchangeWebDAV);

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