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Simple TLS/SSL supported SMTP client for Qt5

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  • P Offline
    P Offline
    plinioandrade
    wrote on last edited by
    #15

    CONGRATULATIONS TO "This Guy!!!":http://morf.lv
    He developed the most simple and useful Qt 5 compatible SMTP Client.

    1 Reply Last reply
    0
    • F Offline
      F Offline
      fab_
      wrote on last edited by
      #16

      Hello everyone.
      The last post is kinda long ago so I'm hoping the someone will read this:

      I have an application which is required to send emails. So I setup a local mailserver and pulled bluetiger9's code here:

      https://github.com/bluetiger9/SmtpClient-for-Qt

      I was able to build a shared .dll file in release Mode. Its 120kb in size.

      Could someone kindly help me out now on how I can use this dll in my application?
      Lets say i want to use it in my application in debug Mode. It looks like it isnt enough to put the .dll file in the corresponding folder. Im not sure what extra info to include about what I've done. Please let me know

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      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #17

        Hi and welcome to devnet,

        Do you mean compile your application to use that library or use it when deploying your application ?

        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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        0
        • F Offline
          F Offline
          fab_
          wrote on last edited by
          #18

          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 1 Reply Last reply
          0
          • F Offline
            F Offline
            fab_
            wrote on last edited by
            #19

            Nevermind, I got it fixed. Turns out you shouldnt rename the dll file after building it. Its name should be the same as specified in TARGET

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            0
            • 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"

              1 Reply Last reply
              0
              • MRenM Offline
                MRenM Offline
                MRen
                wrote on last edited by
                #21

                Hi, good one !

                Thanks for sharing !

                1 Reply Last reply
                0
                • N Offline
                  N Offline
                  nateliv
                  Banned
                  wrote on last edited by nateliv
                  #22
                  This post is deleted!
                  1 Reply Last reply
                  -1
                  • 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

                    1 Reply Last reply
                    0
                    • N Offline
                      N Offline
                      Nyrenthia
                      Banned
                      wrote on last edited by Nyrenthia
                      #24
                      This post is deleted!
                      1 Reply Last reply
                      0
                      • S Offline
                        S Offline
                        sanshow
                        Banned
                        wrote on last edited by
                        #25
                        This post is deleted!
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                        0
                        • W Offline
                          W Offline
                          work
                          Banned
                          wrote on last edited by
                          #26
                          This post is deleted!
                          1 Reply Last reply
                          0
                          • 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

                            1 Reply Last reply
                            0
                            • 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?

                              1 Reply Last reply
                              0
                              • 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.

                                  1 Reply Last reply
                                  0
                                  • K Offline
                                    K Offline
                                    KAHOOT
                                    Banned
                                    wrote on last edited by
                                    #31
                                    This post is deleted!
                                    1 Reply Last reply
                                    -1
                                    • C Offline
                                      C Offline
                                      carlsen8055
                                      Banned
                                      wrote on last edited by
                                      #32
                                      This post is deleted!
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