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POP3 Server Description

Features | Detailed Description

Available in .NET, VCL and ActiveX editions.

The POP3 Server component is used for delivering emails to clients from your own application.

This component represents fully functional multithreaded server with the ability to customize the user and thread performance settings, supports all POP3 extensions according to RFC 1939RFC 1734 and RFC 2449 protocols.

When using together with SMTP Server, it allows reading incoming messages received by SMTP Server without writing a single line of the code.

You can use X.509 certificates for establishing the SSL / TLS secured connection.

See SSL / TLS support and Using certificates

With POP3 Server component you can enable debug log for showing entered commands and replies sent to the user.

Please see the Demos code (Pop3Server, Pop3ServerSSL) and also the indexed Help documentation provided with the Clever Internet Suite installation for more details about using this component.

The most common members of the POP3 Server component can be seen below:

Property List

  Name   Description
 BatchSize Specifies the size of the transferred batch.
 CaseInsensitive Specifies whether the user account validation is case-insensitive.
 MaxThreadCount Gets or Sets the number of requests to the server that can be active concurrently.
 MinThreadCount Gets or Sets the number of idle threads the server maintains in anticipation of new requests.
 Port Specifies the port on which the POP3 server will listen to the user connections.
 UserAccounts Provides a list of users which have allowed connecting to the POP3 server.
 UseAuth Makes the component use the Secure Password Authentication method during the connecting session.
 UseTLS Specifies whether the component should use the TLS / SSL security protocol.

Method List

  Name   Description
 Start Starts the POP3 server.
 Stop Stops the POP3 server.

Event List

  Name   Description
 OnAuthenticate Occurs when the POP3 server has accepred an authentication information from the user and needs to authorize or decline the connection.
 OnDelete Occurs when the POP3 server deletes the mail message.
 OnMailBoxInfo Occurs when the POP3 server retrieves the information about the mailbox.
 OnRetrieve Occurs when the POP3 server retrieves the mail message.
 OnReceiveCommand Occurs when the POP3 server has received a command from the user.
 OnSendResponse Occurs when the POP3 server has sent a reply on the command being received earlier.
 OnServerError Occurs when an error is encountered when any action is performed.

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