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POP3 Server

Features | Detailed Description

The POP3 Server is a component from the Clever Internet Suite library.
This component represents POP3 server and allows you to read mail provided by your own application as specified in RFC 1939, RFC 1734 and RFC 2449 documents.

Available in .NET, VCL and ActiveX editions.


  • Multithreading, Unlimited connections support
  • Read email messages from the disk
  • Keep and read messages in-memory
  • SSL and TLS Encryption - Explicit and Implicit modes
  • User Authentication with different methods: USER/PASS, APOP, CRAM-MD5, NTLM
  • Customize the user and thread performance settings
  • Free one year upgrades and support

Compatible with Most Popular Email Clients

The POP3 Server component allows you to create your own POP3 services which are fully compatible with most popular email client tools such as Outlook, Outlook Express, Mozilla Thunderbird, TheBat, Eudora and many more.

Event-driven architecture for managing client messages

The POP3 Server component provides advanced set of events to list, read, delete emails, obtain email information, authenticate connected users and other operations.

All these events allow you to work with emails in-memory and read manually from, e.g., database.

Using the Pop3FileHandler component you can automatically handle all these events and allow server to manage messages on the disk like MDaemon, Communigate and other mail servers.

When using together with SMTP Server, it is possible to read incoming messages received by SMTP Server without writing a single line of the code. Simple put both POP3 and SMTP server components on to the Form and use the same MailBox path to mail message files.

Explicit and implicit SSL / TLS modes

Using POP3 Server component, you can transfer confidential messages under secure socket layer. You can specify how to start SSL negotiation protocol.

You can implicitly start SSL negotiation after the connection is established or first connect in plaintext, and then explicitly start SSL negotiation through a protocol command - 'STLS'.

Samples, including WinForm clients with full source code

Please see the Demos code (Pop3Server, Pop3ServerSSL) and also the indexed Help documentation provided with the Clever Internet Suite installation to learn more about using this component in your application.

Includes support for Delphi, C++Builder, C#, VB.NET and Javascript.

Complete Delphi and C# source code

When Purchasing the Clever Internet Suite you receive the full sources for all suite components and also free unlimited support.


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