Pop3StartTls Method
Requests the mail server to start TLS/SSL negotiation and protect the existing connection with a security layer.

Namespace: MailBee.Pop3Mail
Assembly: MailBee.NET (in MailBee.NET.dll) Version: 12.2.0 build 630 for .NET 4.5
public bool StartTls()

Return Value

Type: Boolean
true if TLS/SSL negotiation succeeded and the connection is now secured with TLS/SSL layer; otherwise, false.
MailBeeExceptionAn error occurred and ThrowExceptions is true.

This method lets the developer to switch the existing, already opened connection (usually, on port 110), to SSL/TLS mode. If the connection has been opened on a dedicated SSL port from the start (usually, port 995), the developer doesn't need to call this method.

As alternative to calling StartTls method, the developer can ask MailBee to start TLS/SSL negotiation automatically by setting SslMode property value to OnConnect or UseStartTls.

AutodetectPortAndSslMode property may cause MailBee to automatically enable TLS/SSL for some well-known hosts or ports even if SslMode property of the current connection has its default value. Be sure to always check IsSslConnection value prior to calling StartTls.

Note Note
Not all mail servers support STARTTLS functionality.
This sample attempts to establish TLS/SSL connection with the POP3 server and displays the number of messages in the inbox on success.
// To use the code below, import MailBee namespaces at the top of your code.
using MailBee;
using MailBee.Pop3Mail;

// The actual code (put it into a method of your class).
Pop3 pop = new Pop3();
if (!pop.IsSslConnection)
pop.Login("jdoe", "secret");
See Also