Send email by SMTP
-
@Saee1101
Thanks for just deleting your previous same topic after I tried to help.Sample code at https://github.com/bluetiger9/SmtpClient-for-Qt. Test that, then grab just the bits you want from it if you want to do it yourself/keep code small.
You might also find https://morf.lv/simple-tls-ssl-smtp-client-for-qt5 useful.You will need to set up to use Qt SSL support since you are using port 465.
I don't know what you have to do these days to connect successfully to their server (assuming you don't want to do OAuth programming). I have a feeling you need to be logged into your Google account but not sure. And you used to have to enable programmatic sending in your gmail account, don't know if that still applies. You will be providing your gmail username and password.
-
-
-
@Saee1101
I don't know what you mean by "get gmail password"? To send email via Gmail SMTP you would need to send your gmail address and your password. I don't know what your password is, only you do. I am unsure whether if you are currently logged into gmail that would mean you do not need to send your username/password. -
-
@Volker75
Hi. I am sure your information is useful, and OP should try your video. I am sorry but I do not watch any videos, if your was a text/code post I would happily read it. I do now vaguely remember about creating a password at Google side, Is this all to do with https://forum.qt.io/topic/134839/gmail-smtp-authentication/17 ?But in order to keep the functionality you have now, you need to enable 2FA and generate the "less secure app" credentials. That's the scope of the changes you face, if I read the situation correctly.
If you want to guide this OP through what he has to do at the Qt side programatically at the client (in addition to set up at Gmail side), please do so!
-
@JonB No problem. Yes, I am showing in the video how to create a new password and how to enable the 2FA. It is pretty hidden in the google settings. Difficult to explain with text only. You can see it in a video much better.
In the c++ source it is easy. I also just use that simple-mail GitHub repository. The manual there is short and easy. Enabling the 2FA on google took me the most time. -
I did set password and 2FA for from@gmail.com
Smtp *newmail=new Smtp("from@gmail.com","to@gmail.com","Test","Hi,I'm QtCreator");I'm sure enter password for "from@gmail.com" . but I don't know how do it ?
-
#ifndef SMTP_H #define SMTP_H #include <QTcpSocket> #include <QString> #include <QTextStream> #include <QDebug> #include <QMessageBox> #include <QTextEdit> class Smtp : public QObject { Q_OBJECT public: Smtp( const QString &from, const QString &to, const QString &subject, const QString &body ); ~Smtp(); QString base64Encode(const QString &plainText); signals: void status( const QString &); public slots: void stateChanged(); void errorReceived(); void disconnected(); void connected(); void readyRead(); private: QString message; QTextStream *t; QTcpSocket *socket; QString from; QString rcpt; QString response; QTextEdit *output; enum states{Rcpt,Mail,Data,Init,Body,Quit,Close}; int state; }; #endifdo you see setPassword ?!
-
@Volker75
I do Enable POP for all mail or Enable POP for mail that arrives from now on.
Application Output :host : "smtp.gmail.com" port : 587 ssl : false auth : false user : "test.tivanex@gmail.com" password : "nkjs **** **** ****" [SmtpClient] State: ConnectingState [Socket] State: QAbstractSocket::HostLookupState [Socket] State: QAbstractSocket::ConnectingState [Socket] State: QAbstractSocket::ConnectedState [SmtpClient] State: ConnectedState [Socket] IN: "220 smtp.gmail.com ESMTP ti10-20020a170907c20a00b00a360ba43173sm370123ejc.99 - gsmtp\r\n" [SmtpClient] State: _EHLO_State [Socket] OUT: "EHLO localhost" [Socket] IN: "250-smtp.gmail.com at your service, [109.125.166.7]\r\n" [Socket] IN: "250-SIZE 35882577\r\n" [Socket] IN: "250-8BITMIME\r\n" [Socket] IN: "250-STARTTLS\r\n" [Socket] IN: "250-ENHANCEDSTATUSCODES\r\n" [Socket] IN: "250-PIPELINING\r\n" [Socket] IN: "250-CHUNKING\r\n" [Socket] IN: "250 SMTPUTF8\r\n" [SmtpClient] State: _READY_Connected [SmtpClient] State: ReadyState [SmtpClient] State: MailSendingState [SmtpClient] State: _MAIL_0_FROM [Socket] OUT: "MAIL FROM:<test.tivanex@gmail.com>" [Socket] IN: "530-5.7.0 Must issue a STARTTLS command first. For more information, go to\r\n" [Socket] IN: "530-5.7.0 https://support.google.com/a/answer/3221692 and review RFC 3207\r\n" [Socket] IN: "530 5.7.0 specifications. ti10-20020a170907c20a00b00a360ba43173sm370123ejc.99 - gsmtp\r\n" QWindowsWindow::setGeometry: Unable to set geometry 120x30+805+451 (frame: 136x69+797+420) on QWidgetWindow/"QErrorMessageClassWindow" on "\\.\DISPLAY1". Resulting geometry: 203x124+805+451 (frame: 219x163+797+420) margins: 8, 31, 8, 8 minimum size: 203x124 MINMAXINFO maxSize=0,0 maxpos=0,0 mintrack=219,163 maxtrack=0,0)Help me ,please
Help me ,please
Help me ,please -
-
530-5.7.0 Must issue a STARTTLS command first.The server is telling you that you are trying to send a message unencrypted, but it requires encryption and won't just send in plain text. You can see from earlier that one of the commands it accepts is
STARTTLS, and you need to issue that from your client.I can't recall the details, you may wait for other responses. But I think after you send the initial
EHLOgreeting you then send aSTARTTLS. And then I think you have to set up to use SSL socket. An example is at https://stackoverflow.com/questions/34215231/send-email-with-starttls, it's for Java but you get the idea. I'm sure you can get a better one by Googling forsmtp starttls example, e.g. https://stackoverflow.com/questions/22957189/smtp-send-mail-with-qtcpsocket for Qt. If you looked at/are using https://github.com/bluetiger9/SmtpClient-for-Qt I see that mentions it has support forSTARTTLS.
