Unicode C

Verify Connectivity to the POP3 Server

Demonstrates the Chilkat MailMan.VerifyPopConnection method, which tests whether a TCP/IP connection can be established with the configured POP3 server. It verifies connectivity only — it does not authenticate. This example configures the POP3 host and checks whether it can be reached.

Background: This is the POP3 counterpart to VerifySmtpConnection. It answers the first diagnostic question — can the client reach the POP3 server on the configured host and port and complete the TLS handshake? A failure here indicates a network, firewall, DNS, port, or certificate problem rather than a credentials issue, which VerifyPopLogin checks next.

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Unicode C

#include <C_CkMailManW.h>

void ChilkatSample(void)
    {
    HCkMailManW mailman;
    BOOL connected;

    //  Demonstrates the MailMan.VerifyPopConnection method, which tests whether a TCP/IP
    //  connection can be established with the configured POP3 server.  It verifies connectivity
    //  only (it does not authenticate).

    mailman = CkMailManW_Create();

    //  Configure the POP3 server connection.
    CkMailManW_putMailHost(mailman,L"pop.example.com");
    CkMailManW_putMailPort(mailman,995);
    CkMailManW_putPopSsl(mailman,TRUE);

    //  Test connectivity to the POP3 server.
    connected = CkMailManW_VerifyPopConnection(mailman);

    if (connected == TRUE) {
        wprintf(L"Successfully connected to the POP3 server.\n");
    }
    else {
        wprintf(L"Could not connect to the POP3 server.\n");
    }



    CkMailManW_Dispose(mailman);

    }