How to POP3 in C#

Removing Messages

Retrieving a message does not remove the message from the POP3 server. A further call to LIST will still return the message. To remove a message from POP3 server, you have to call the Delete method.

public void Delete(Pop3Message rhs)
    string message;
    string response;

    message = "DELE " + rhs.number + "\r\n";
    response = Response();
    if (response.Substring(0, 3) != "+OK")
        throw new Pop3Exception(response);

The Delete method sends a DELE message with the message number to the POP3 server. The server will respond with the +OK acknowledgment message, if successful.

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Randy Charles Morin

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