Send email via c++

This is a discussion on Send email via c++ within the C++ Programming forums, part of the General Programming Boards category; hy, can somevone tell me how to send email using smtp server in c++???? please......

  1. #1
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    Send email via c++

    hy, can somevone tell me how to send email using smtp server in c++????

    please...

  2. #2
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    i would like to add to the question. i have a yahoo account.
    how to write a program in C++ that can send e-mails using that Yahoo account?

  3. #3
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    i found this:


    Code:
    #define _CRTDBG_MAP_ALLOC
    #include <windows.h>
    #include <stdio.h>
    #include <crtdbg.h>
    
    #include "C:/ck2000/components/ChilkatLib/Package/Include/CkSettings.h"
    #include "C:/ck2000/components/ChilkatLib/Package/Include/CkEmail.h"
    #include "C:/ck2000/components/ChilkatLib/Package/Include/CkEmailBundle.h"
    #include "C:/ck2000/components/ChilkatLib/Package/Include/CkMailMan.h"
    #include "C:/ck2000/components/ChilkatLib/Package/Include/CkString.h"
    #include "C:/ck2000/components/ChilkatLib/Package/Include/CkByteData.h"
    
    void EmailExample(void)
        {
        CkMailMan mailman;
    
        // Any string passed to UnlockComponent begins the 30-day trial.
        bool unlocked = mailman.UnlockComponent("30-day trial");
        if (!unlocked)
    	{
    	printf("Failed to unlock component\n");
    	return;
    	}
    
        mailman.put_SmtpHost("mail.earthlink.net");
        
        // Send an email with a file attachment.
        CkEmail email;
    
        email.put_Body("This is the body");
    
        email.AddTo("Chilkat Support","support@chilkatsoft.com");
        
        email.put_FromAddress("somebody@chilkatsoft.com");
    
        email.put_Subject("This is a test");
    
        // Add a file attachment.
        if (!email.AddFileAttachment("dudeCPP.gif",0))
    	{
    	email.SaveLastError("errors.xml");
    	return;
    	}
    
        // Send the email
        if (!mailman.SendEmail(&email))
    	{
    	mailman.SaveLastError("errors.xml");
    	}
    
        }
    
    int APIENTRY WinMain(HINSTANCE hInstance,
                         HINSTANCE hPrevInstance,
                         LPSTR     lpCmdLine,
                         int       nCmdShow)
    {
        freopen("stdout.txt","w",stdout);
    
        EmailExample();
    
        CkSettings::cleanupMemory();
    
        _CrtDumpMemoryLeaks();
    
        return 0;
    }
    but it doens't work...where is problem?

  4. #4
    C++まいる!Cをこわせ! Elysia's Avatar
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    How the heck are we supposed to know!? Describe the problem and post any compile errors and where (on what line) they are.

  5. #5
    Kernel hacker
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    Did you also find the ChilkatLib that it appears to reference?

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  6. #6
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    if found all error except one...

    crtdbg.h - it is missing, how can i install that?
    Last edited by davidboja; 11-30-2007 at 10:20 AM.

  7. #7
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    Obviously you need to download the API ...

  8. #8
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    hm...i didn't find link to download!

    can you give me link?

  9. #9
    Kernel hacker
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    crtdbg.h is part of Visual Studio tools, and I suspect you can actually live well without that, if you just remove the functions that uses it, which is particular "_CrtDumpMemoryLeaks();".

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  10. #10
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    Download this: http://sourceforge.net/projects/poco, read the documentation, and use it. POCO will be very usefull to you, since it adds some other API&#180;s to work with XML, Net, etc... Chilkat isn&#180;t nice, it is payed and i don&#180;t like it...

  11. #11
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    it doens't work....program start...and email doesn't came!

  12. #12
    Unregistered User Yarin's Avatar
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    Junk classes. Use the pure!
    Code:
    // Yuri Zarechny for News2News (c) 2006 
    
    #include "stdafx.h" 
    //#include < windows.h > 
    #include < winsock2.h >  //link ws2_32.lib 
    #include "conio.h" 
    
    struct _sendmail { 
        LPSTR host; 
        LPSTR IP; 
        LPSTR sender; 
        LPSTR recip; 
        LPSTR subject; 
        LPSTR body; 
        SOCKET hSocket; 
    } sendmail; 
    
    BOOL InitSock(LPSTR Server) 
    { 
        WSADATA wsd; 
        if (WSAStartup(MAKEWORD(2,2), &wsd) > 0) 
        { 
            printf("Winsock init error: &#37;d\n", WSAGetLastError()); 
            return false; 
        } 
        return true; 
    } 
    
    LPSTR GetIP(LPSTR h) 
    { 
        in_addr ia; 
        hostent* hbn; 
        unsigned int addr; 
    
        if (isalpha(h[0])) hbn = gethostbyname(h); 
        else 
        { 
            addr = inet_addr(h); 
            hbn = gethostbyaddr((char *)&addr, 4, AF_INET); 
        } 
    
        if (hbn==0) return ""; 
        ia.S_un.S_addr=*(DWORD *)hbn->h_addr_list[0]; 
        return inet_ntoa(ia); 
    } 
    
    BOOL ValidateEnvelope(LPSTR h, LPSTR r, LPSTR s, LPSTR *ip) 
    { 
        if (h=="" || r=="" || s=="") 
        { 
            printf("Invalid host or sender/recipient email address\n"); 
            return false; 
        } 
        *ip=GetIP(h); 
        if (*ip=="") 
        { 
            printf("Can not resolve host name %s to ip address\n", h); 
            return false; 
        } 
        return true; 
    } 
    
    BOOL ConnectTo() 
    { 
        const u_short SMTP_PORT=25; 
        sockaddr_in sa; 
        sa.sin_family=AF_INET; 
        sa.sin_addr.S_un.S_addr=inet_addr(sendmail.IP); 
        sa.sin_port=htons(SMTP_PORT); 
        return (connect(sendmail.hSocket, (SOCKADDR *)&sa, sizeof(sa))==0); 
    } 
    
    BOOL snd(LPSTR txt, bool resp) 
    { 
        char tx[4096]; 
        sprintf(tx, "%s\r\n", txt); 
    
        if (send(sendmail.hSocket, tx, strlen(tx),0)==SOCKET_ERROR) 
        { 
            printf("%s%s\n", tx, " - send operation failed."); 
            return false; 
        } 
        if (!resp) return true; 
    
        while (true) 
        { 
            char rcv[1024]; 
            char outp[255]=""; 
    
            HANDLE hEvent=WSACreateEvent(); 
            WSAEventSelect(sendmail.hSocket,hEvent,FD_READ); 
            DWORD nWait=WSAWaitForMultipleEvents(1, &hEvent, 0, 1000, 0); 
            WSACloseEvent(hEvent); 
            if (nWait!=0) return false; 
            recv(sendmail.hSocket, rcv, sizeof(rcv),0); 
    
            strncpy(outp, rcv, strcspn(rcv, "\n")+1); 
            printf("%s\n", outp); 
        } 
        return true; 
    } 
    
    BOOL SendMail() 
    { 
        if (!ValidateEnvelope(sendmail.host, sendmail.recip, 
            sendmail.sender, &sendmail.IP)) return false; 
    
        char tmp[255]; 
        if (sendmail.sender=="" || sendmail.recip=="" || 
            sendmail.body=="" || sendmail.subject=="") return false; 
    
        sendmail.hSocket=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); 
        if (sendmail.hSocket==SOCKET_ERROR) return false; 
    
        if (!ConnectTo()) 
        { 
            printf("Unable to connect to the server.\n"); 
            return false; 
        } 
        snd("HELO", true); 
    
        sprintf(tmp, "%s%s%s", "MAIL FROM:<", sendmail.sender, ">"); 
        snd(tmp, true); 
        sprintf(tmp, "%s%s%s", "RCPT TO:<", sendmail.recip, ">"); 
        snd(tmp, true); 
    
        snd("DATA", true); 
        sprintf(tmp, "%s%s", "From: ", sendmail.sender); 
        snd(tmp, false); 
        sprintf(tmp, "%s%s", "To: ", sendmail.recip); 
        snd(tmp, false); 
        sprintf(tmp, "%s%s", "Subject: ", sendmail.subject); 
        snd(tmp, false); 
        snd("", false); 
        snd(sendmail.body ,false); 
        snd(".", true); 
    
        snd("NOOP", true); 
        snd("QUIT", true); 
        closesocket(sendmail.hSocket); 
    
        return true; 
    } 
    
    void _tmain() { 
        // provide valid host name and email addresses 
        sendmail.host = "smtp.myisp.ca"; 
        sendmail.sender = "sender@myisp.ca"; 
        sendmail.recip = "davidboja@yahoo.com"; 
    
        sendmail.subject = "Testing Winsock SMTP functionality"; 
        sendmail.body = "Test message:\n\n" 
            "Windows Sockets (Winsock) provides a general-purpose networking " 
            "application programming interface (API) based on the socket " 
            "interface from the University of California at Berkeley.\n"; 
    
        if (InitSock(sendmail.host)) 
        { 
            SendMail(); 
            WSACleanup(); 
        } 
    
        printf("\nPress ENTER to quit"); 
        getch(); 
        return; 
    }

  13. #13
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    tnx...but when i run this email doesn't come...??????

  14. #14
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    Maybe your SMTP requires authentication... Use POCO, that itīs implementation support authentication.

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