Some examples with pure c interface

Some examples with Pure C Interface

• Send a plaintext email via a secure server (opportunistic) -> SSL/TLS Port 587
• Send a plaintext email via a secure server (forced) -> SSL/TLS Port 465
• Send a plaintext email via an unsecured server
• Send an html email to 2 recipients with an attachment via an unsecured server

Send a plaintext email via a secure server (opportunistic)

#include "opportunisticsecuresmtpclient.h"
#include <iostream>
#include <memory>
#include <stdexcept>

using namespace jed_utils;

int main() {
	OpportunisticSecureSMTPClient client("<your smtp server address>", 587);
	client.setCredentials(Credential("[email protected]", "mypassword"));
	try	{
		PlaintextMessage msg(MessageAddress("[email protected]", "Test Address Display"),
			MessageAddress("[email protected]", "Another Address display"),
			"This is a test (Subject)",
			"Hello\nHow are you?");

		int err_no = client.sendMail(msg);
		if (err_no != 0) {
			std::cout << client.getCommunicationLog() << '\n';
			std::unique_ptr<char> errorMessage(client.getErrorMessage(err_no));
			std::cerr << "An error occurred: " << errorMessage.get()
                 << " (error no: " << err_no << ")" << '\n';
			return 1;
		}
		std::cout << client.getCommunicationLog() << '\n';
		std::cout << "Operation completed!" << std::endl;
	}
	catch (std::invalid_argument &err) {
		std::cerr << err.what() << std::endl;
	}
    return 0;
}

Send a plaintext email via a secure server (forced)

#include "forcedsecuresmtpclient.h"
#include <iostream>
#include <memory>
#include <stdexcept>

using namespace jed_utils;

int main() {
	ForcedSecureSMTPClient client("<your smtp server address>", 465);
	client.setCredentials(Credential("[email protected]", "mypassword"));
	try {
		PlaintextMessage msg(MessageAddress("[email protected]", "Test Address Display"),
			MessageAddress("[email protected]", "Another Address display"),
			"This is a test (Subject)",
			"Hello\nHow are you?");

		int err_no = client.sendMail(msg);
		if (err_no != 0) {
			std::cout << client.getCommunicationLog() << '\n';
			std::unique_ptr<char> errorMessage(client.getErrorMessage(err_no));
			std::cerr << "An error occurred: " << errorMessage.get()
                 << " (error no: " << err_no << ")" << '\n';
			return 1;
		}
		std::cout << client.getCommunicationLog() << '\n';
		std::cout << "Operation completed!" << std::endl;
	}
	catch (std::invalid_argument &err) {
		std::cerr << err.what() << std::endl;
	}
    return 0;
}

Send a plaintext email via an unsecured server

#include "smtpclient.h"
#include <iostream>
#include <memory>
#include <stdexcept>

using namespace jed_utils;

int main() {
	SmtpClient client("<your smtp server address>", 25);
	try {
		PlaintextMessage msg(MessageAddress("[email protected]", "Test Address Display"),
			MessageAddress("[email protected]"),
			"This is a test (Subject)",
			"Hello\nHow are you?");

		int err_no = client.sendMail(msg);
		if (err_no != 0) {
			std::cout << client.getCommunicationLog() << '\n';
			std::unique_ptr<char> errorMessage(client.getErrorMessage(err_no));
			std::cerr << "An error occurred: " << errorMessage.get()
                 << " (error no: " << err_no << ")" << '\n';
			return 1;
		}
		std::cout << client.getCommunicationLog() << '\n';
		std::cout << "Operation completed!" << std::endl;
	}
	catch (std::invalid_argument &err) {
		std::cerr << err.what() << std::endl;
	}
    return 0;
}

Send an html email to 2 recipients with an attachment via an unsecured server

#include "smtpclient.h"
#include <iostream>
#include <memory>
#include <stdexcept>

using namespace jed_utils;

int main() {
	SmtpClient client("<your smtp server address>", 25);
	try {
		const int ATTACHMENT_COUNT = 1;
		const int TOADDR_COUNT = 2;

		Attachment att1[ATTACHMENT_COUNT] = { Attachment("C:\\Temp\\test.png", "test image.png") };

		MessageAddress to_addr[TOADDR_COUNT] = { MessageAddress("[email protected]"),
		MessageAddress("[email protected]")
		};

		HTMLMessage msg(MessageAddress("[email protected]", "Test Address Display"),
			to_addr, TOADDR_COUNT,
			"This is a test (Subject)",
			"<html><body><h1>Hello,</h1><br/><br/>How are you?</body></html>", nullptr, 0, nullptr, 0, att1, ATTACHMENT_COUNT);

		int err_no = client.sendMail(msg);
		if (err_no != 0) {
			std::cout << client.getCommunicationLog() << '\n';
			std::unique_ptr<char> errorMessage(client.getErrorMessage(err_no));
			std::cerr << "An error occurred: " << errorMessage.get()
                 << " (error no: " << err_no << ")" << '\n';
			return 1;
		}
		std::cout << client.getCommunicationLog() << '\n';
		std::cout << "Operation completed!" << std::endl;
	}
	catch (std::invalid_argument &err) {
		std::cerr << err.what() << std::endl;
	}
    return 0;
}