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Simple TLS/SSL supported SMTP client for Qt5

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  • D Offline
    D Offline
    DoctorD
    wrote on last edited by
    #20

    I am using this with Qt 5.7. The email is successfuly sent but then I get this error in the end :

    Server response code: "221"
    Server response: "221 2.0.0 closing connection y144sm8277194wmd.18 - gsmtp\r\n"
    error QAbstractSocket::RemoteHostClosedError
    stateChanged QAbstractSocket::UnconnectedState
    disconneted
    error "The TLS/SSL connection has been closed"

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    • MRenM Offline
      MRenM Offline
      MRen
      wrote on last edited by
      #21

      Hi, good one !

      Thanks for sharing !

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      • N Offline
        N Offline
        nateliv
        Banned
        wrote on last edited by nateliv
        #22
        This post is deleted!
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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #23

          Did you check whether your server uses an outdated protocol that is either not supported anymore or disabled by default for security reasons.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • N Offline
            N Offline
            Nyrenthia
            Banned
            wrote on last edited by Nyrenthia
            #24
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            • S Offline
              S Offline
              sanshow
              Banned
              wrote on last edited by
              #25
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              • W Offline
                W Offline
                work
                Banned
                wrote on last edited by
                #26
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                • SGaistS SGaist

                  Did you install and openssl on your window machine ? Is your Qt built with SSL support ?

                  O Offline
                  O Offline
                  opengpu
                  wrote on last edited by
                  #27

                  @SGaist does the Qt-installer with SSL? i donot want to compile Qt by myself

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                  • O Offline
                    O Offline
                    opengpu
                    wrote on last edited by
                    #28

                    @fab_ said in Simple TLS/SSL supported SMTP client for Qt5:

                    Hello everyone.

                    this post is long long ago, so does this is still work for current new version Qt?
                    and is there better SMTP Qt lib?

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                    • F fab_

                      Hello!

                      It's both I guess.
                      I want to use the functions that lib gives me in my code for my application.

                      When i deploy the application i usually have to provide all neccessary dll files in the same folder (libmysql.dll) for example. So no static linking if thats what you're referring to.

                      If you look at the github page of my first post. There is an example of its usage right on the front page. I'm trying to achieve to get this example to run properly.
                      https://github.com/bluetiger9/SmtpClient-for-Qt

                      After I made my first post I spent the rest of the night tinkering with it and I managed to get something going:

                      Following this;
                      https://wiki.qt.io/How_to_create_a_library_with_Qt_and_use_it_in_an_application
                      I saw that MinGW (I use MinGW)creates a .dll and a .a file. I copied both those files in the folder containing the project where there supposed to be used. I also copied the header files in the same folder.

                      Here is my .pro file:

                      QT       += core
                      QT       -= gui
                      
                      TARGET = SMTPEmailTestDLL
                      CONFIG   += console
                      CONFIG   -= app_bundle
                      
                      TEMPLATE = app
                      
                      win32:CONFIG (release, debug|release): LIBS += -L$$PWD/ -lSMTPEmail
                      else:win32:CONFIG (debug, debug|release): LIBS += -L$$PWD/ -lSMTPEMail
                      else:unix: LIBS += -L$$PWD/ -lSMTPEmail
                      
                      INCLUDEPATH += $$PWD/
                      DEPENDPATH += $$PWD/
                      
                      SOURCES += main.cpp
                      

                      This actually enabled me to build and run the programm as seen on bluetiger9's github front page.

                      But, upon running it either terminates with return value -1073741515 or I get the message that "The process to debug couldnt be adressed: wrong parameter"

                      Weirdly, although receiving those messages, the programm sometimes actually sends an Email out to my gmail Account (be it with a wrong timestamp) as intended, but sometimes it just doenst.

                      So I might've done something wrong on the way.
                      I'm sorry if the information I'm giving is somewhat blurry. I appreciate you taking some time for this SGaist!

                      O Offline
                      O Offline
                      opengpu
                      wrote on last edited by
                      #29

                      @fab_

                      opengpu 36 minutes ago

                      anyone ever used libcurl to send email to smtp server?how many milliseconds it need for sending mail one time?is it fast enough to send email by libcurl in mainThread?

                      i tried this one, it works. but it's slow, as it needs about 3000 milliseconds for sending email one time.
                      https://github.com/bluetiger9/SmtpClient-for-Qt

                      aha_1980A 1 Reply Last reply
                      0
                      • O opengpu

                        @fab_

                        opengpu 36 minutes ago

                        anyone ever used libcurl to send email to smtp server?how many milliseconds it need for sending mail one time?is it fast enough to send email by libcurl in mainThread?

                        i tried this one, it works. but it's slow, as it needs about 3000 milliseconds for sending email one time.
                        https://github.com/bluetiger9/SmtpClient-for-Qt

                        aha_1980A Offline
                        aha_1980A Offline
                        aha_1980
                        Lifetime Qt Champion
                        wrote on last edited by
                        #30

                        @opengpu would you please stop spamming every e-mail related thread?

                        you have a concrete question, so ask it. provide example code so others understand your problem.

                        Regards

                        Qt has to stay free or it will die.

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                        • K Offline
                          K Offline
                          KAHOOT
                          Banned
                          wrote on last edited by
                          #31
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                          • C Offline
                            C Offline
                            carlsen8055
                            Banned
                            wrote on last edited by
                            #32
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