Unicode C

Send an Email via SMTP

Demonstrates the Chilkat MailMan.SendEmail method, which sends a single Email object through the configured SMTP server. This example configures the SMTP connection, builds a message, and sends it.

Background: SMTP (Simple Mail Transfer Protocol) is the protocol for sending mail. The typical flow is: connect to the server, authenticate, then hand over the message with MAIL FROM, RCPT TO, and DATA. SendEmail wraps all of that: you build an Email with subject, recipients, and body, and Chilkat renders it to MIME and delivers it. Modern submission commonly uses implicit TLS on port 465 (SmtpSsl = true).

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#include <C_CkMailManW.h>
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMailManW mailman;
    HCkEmailW email;

    success = FALSE;

    //  Demonstrates the MailMan.SendEmail method, which sends a single Email object through the
    //  configured SMTP server.

    mailman = CkMailManW_Create();

    //  Configure the SMTP server connection.
    CkMailManW_putSmtpHost(mailman,L"smtp.example.com");
    CkMailManW_putSmtpPort(mailman,465);
    CkMailManW_putSmtpSsl(mailman,TRUE);
    CkMailManW_putSmtpUsername(mailman,L"user@example.com");
    CkMailManW_putSmtpPassword(mailman,L"myPassword");

    //  Build the email to send.
    email = CkEmailW_Create();
    CkEmailW_putSubject(email,L"Test email from Chilkat");
    CkEmailW_putFrom(email,L"alice@example.com");
    CkEmailW_AddTo(email,L"Bob",L"bob@example.com");
    CkEmailW_putBody(email,L"Hello, this is a test message.");

    //  Send the email.

    success = CkMailManW_SendEmail(mailman,email);
    if (success == FALSE) {
        wprintf(L"%s\n",CkMailManW_lastErrorText(mailman));
        CkMailManW_Dispose(mailman);
        CkEmailW_Dispose(email);
        return;
    }

    wprintf(L"Email sent.\n");

    //  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
    //  connects and authenticates -- using the property settings above -- whenever a server
    //  operation requires it.  Calling the explicit connect/authenticate methods can still be
    //  helpful to determine whether a failure occurs while connecting or while authenticating.


    CkMailManW_Dispose(mailman);
    CkEmailW_Dispose(email);

    }