Zig

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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const std = @import("std");
const chilkat = @import("chilkat");

pub fn main() !void {
    // 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).

    const mailman = try chilkat.MailMan.init();
    defer mailman.deinit();

    // Configure the POP3 server connection.
    mailman.setMailHost("pop.example.com");
    mailman.setMailPort(995);
    mailman.setPopSsl(true);

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

    if (connected) {
        std.debug.print("Successfully connected to the POP3 server.\n", .{});
    } else {
        std.debug.print("Could not connect to the POP3 server.\n", .{});
    }
}