The SmtpClient for Qt is small library written for Qt 5 / 6 (C++ version) that allows application to send complex emails (plain text, html, attachments, inline files, etc.) using the Simple Mail Transfer Protocol (SMTP).
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Asynchronous & Synchronous working mode
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Qt5/6 compatibility
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Building as a shared library
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code of SmtpClient refactored and partially rewrited
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TLS (STARTTLS) connection is now supported
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multiple types of recipients (to, cc, bcc)
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nested mime emails (mixed/alternative, mixed/related)
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output compilant with RFC2045
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TCP and SSL connections to SMTP servers
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SMTP authentication (PLAIN and LOGIN methods)
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sending MIME emails (to multiple recipients)
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plain text and HTML (with inline files) content in emails
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multiple attachments and inline files (used in HTML)
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different character sets (ascii, utf-8, etc) and encoding methods (7bit, 8bit, base64)
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error handling
Lets see a simple example:
#include <QtCore>
#include "../src/SmtpMime"
int main(int argc, char *argv[])
{
{
QCoreApplication a(argc, argv);
// This is a first demo application of the SmtpClient for Qt project
// Now we create a MimeMessage object. This is the email.
MimeMessage message;
EmailAddress sender("[email protected]", "Your Name");
message.setSender(sender);
EmailAddress to("[email protected]", "Recipient's Name");
message.addRecipient(to);
message.setSubject("SmtpClient for Qt - Demo");
// Now add some text to the email.
// First we create a MimeText object.
MimeText text;
text.setText("Hi,\nThis is a simple email message.\n");
// Now add it to the mail
message.addPart(&text);
// Now we can send the mail
SmtpClient smtp("smtp.gmail.com", 465, SmtpClient::SslConnection);
smtp.connectToHost();
if (!smtp.waitForReadyConnected()) {
qDebug() << "Failed to connect to host!";
return -1;
}
smtp.login("[email protected]", "your_password");
if (!smtp.waitForAuthenticated()) {
qDebug() << "Failed to login!";
return -2;
}
smtp.sendMail(message);
if (!smtp.waitForMailSent()) {
qDebug() << "Failed to send mail!";
return -3;
}
smtp.quit();
}For more examples see the Wiki/Examples.
This project (all files including the demos/examples) is licensed under the GNU LGPL, version 2.1.
Copyright (c) 2014-2022 - Attila Tőkés
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