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Stylo
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Location: Israel
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 Posted: Sun Nov 23, 2008 1:20 pm Post subject: [help] sending email via C++ |
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i'm trying to send an email via C++ using sockets
well my code hasn't got any error but it doesn't sends any mail
that's my code, i thought that i might wrong at the sockaddr_in thing so correct me if there's any problem there
| Code: |
#define br cout << "\n";
char Buffer[260] = "";
char RecvBuff[260] = "";
void main()
{
sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr("66.249.93.111"); //smtp.gmail.com ip
addr.sin_port = htons(25);
WSADATA wsaData;
if (WSAStartup(MAKEWORD(1,1),&wsaData) != 0){
cout << "[!] WSAStartup failed";
br;
}
int sock;
cout << "[!] Connecting...";
br;
sock = socket(AF_INET,SOCK_STREAM,0);
if (sock == -1){
cout << "[!] socket failed";
br;
}
if (connect(sock,(struct sockaddr *)&addr,sizeof(addr)) == -1){
cout << "[!] connect failed";
br;
}
cout << "[!] Connected";
br;
strcpy(Buffer,"HELO smtp.gmail.com");
if (send(sock,Buffer,strlen(Buffer),0) == -1){
cout << "[!] send1 failed";
br;
}
if (recv(sock,RecvBuff,strlen(RecvBuff),0) == -1){
cout << "[!] recv1 failed";
br;
}
cout << "[!] " << RecvBuff;
br;
Sleep(1000);
strcpy(Buffer,"MAIL FROM :<gmailEmail>");
if (send(sock,Buffer,strlen(Buffer),0) == -1){
cout << "[!] send2 failed";
br;
}
if (recv(sock,RecvBuff,strlen(RecvBuff),0) == -1){
cout << "[!] recv2 failed";
br;
}
cout << "[!] " << RecvBuff;
br;
Sleep(1000);
strcpy(Buffer,"RCPT TO:< gmailEmail >");
if (send(sock,Buffer,strlen(Buffer),0) == -1){
cout << "[!] send3 failed";
br;
}
if (recv(sock,RecvBuff,strlen(RecvBuff),0) == -1){
cout << "[!] recv3 failed";
br;
}
cout << "[!] " << RecvBuff;
br;
Sleep(1000);
strcpy(Buffer,"DATA\nHello\n.");
if (send(sock,Buffer,strlen(Buffer),0) == -1){
cout << "[!] send4 failed";
br;
}
if (recv(sock,RecvBuff,strlen(RecvBuff),0) == -1){
cout << "[!] recv4 failed";
br;
}
cout << "[!] " << RecvBuff;
br;
Sleep(1000);
strcpy(Buffer,"QUIT");
if (send(sock,Buffer,strlen(Buffer),0) == -1){
cout << "[!] send5 failed";
br;
}
if (recv(sock,RecvBuff,strlen(RecvBuff),0) == -1){
cout << "[!] recv5 failed";
br;
}
cout << "[!] " << RecvBuff;
br;
Sleep(1000);
cin.get();
}
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any suggestions?
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sloppy
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| Posted: Mon Nov 24, 2008 3:17 am Post subject: |
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| http://mail.google.com/support/bin/answer.py?hl=en&answer=13287 wrote: | Outgoing Mail (SMTP) Server - requires TLS: smtp.gmail.com (use authentication)
Use Authentication: Yes
Use STARTTLS: Yes (some clients call this SSL)
Port: 465 or 587 |
You need to implement SSL and authenticate with your gmail account before an email can be sent through their server. I'm not really sure about the specifics, but you might want to start with OpenSSL / cryptlib.
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Stylo
Grandmaster Cheater Supreme
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Joined: 16 May 2007
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Location: Israel
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| Posted: Mon Nov 24, 2008 4:50 am Post subject: |
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how would i implement SSL in my code?
i mean i read what you've gave, but i didn't understand how can i impelemt it inside my code ?!
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SXGuy
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Posts: 3551
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| Posted: Mon Nov 24, 2008 8:46 am Post subject: |
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From what i understand, sending mail through gmail is very complicated.
As already mentioned, you need SSL or it wont work.
You may find it easy, to use a free SMTP forwarding host.
What you do is, send mail to one of the SMTP hosts, and they redirect it to your gmail account or any account you like.
That way you need no SSL's, no authentication process.
The hardest part, is finding a free smtp host that allows you to redirect mail.
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Stylo
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Location: Israel
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| Posted: Mon Nov 24, 2008 9:18 am Post subject: |
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so what if i'd want to send to a hotmail address? or any other server besides gmail?
would it be that complicated?
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SXGuy
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| Posted: Mon Nov 24, 2008 9:28 am Post subject: |
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yes, alot of them now, do not allow SMTP connections without SSL.
Ever thought about scrapping it all and just using TCP to send data instead?
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Stylo
Grandmaster Cheater Supreme
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Location: Israel
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| Posted: Mon Nov 24, 2008 9:55 am Post subject: |
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actually i'm pretty new to this mailing stuff so i don't really know much about what you're talking
so if you can explain more or point me to a good tutorial / explanation it'd be great
i'm searching at google for tutorials and i found this thing
http://www.example-code.com/vcpp/c++_smtp_ssl.asp
i downloaded the whole package they put there
but i don't know how to use it in my project
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SXGuy
I post too much
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| Posted: Mon Nov 24, 2008 10:10 am Post subject: |
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yeah what you posted is fine, although its set up to use a domain name email address with smtp functionality.
But you would just replace that with an smtp host, which redirects the mail automatically to gmail.
search google for free smtp, and check if any of them allow mail forwarding
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nog_lorp
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| Posted: Mon Nov 24, 2008 11:51 am Post subject: |
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I was writing a PHP form mailer about a year ago, and had no SMTP mail account, so I tried to use my gmail account and found out that gmail uses (used?) a funky non-standard implementation. I found some hacky specialized code online to handle it. That might be associated with your issue.
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HomerSexual
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| Posted: Mon Nov 24, 2008 12:09 pm Post subject: |
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| 1qaz wrote: | actually i'm pretty new to this mailing stuff so i don't really know much about what you're talking
so if you can explain more or point me to a good tutorial / explanation it'd be great
i'm searching at google for tutorials and i found this thing
http://www.example-code.com/vcpp/c++_smtp_ssl.asp
i downloaded the whole package they put there
but i don't know how to use it in my project |
| Code: | // Send email via an SSL connection with an SMTP server.
void SendEmailSsl(void)
{
CkMailMan mailman;
mailman.UnlockComponent("Anything for 30-day trial");
// Create a simple email for sending.
CkEmail email;
email.put_Body("This is a test");
email.put_Subject("Test email for SMTP SSL");
email.put_From("Chilkat Support <[email protected]>");
email.AddTo("Matt","[email protected]");
// The SMTP SSL port is usually 465.
mailman.put_SmtpSsl(true);
mailman.put_SmtpPort(465);
// Set our SMTP hostname and login/password info.
// The login/password may or may not be necessary depending on your server
// and on the location from which you are connecting (i.e. depending on whether
// you may be inside or outside of a firewall, if one exists.)
mailman.put_SmtpHost("mail.chilkatsoft.com");
mailman.put_SmtpUsername("myLogin");
mailman.put_SmtpPassword("myPassword");
bool success = mailman.SendEmail(&email);
if (!success)
{
mailman.SaveLastError("sendError.txt");
}
return;
}
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What do'nt you understand about that? It tells you exactly what to do
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Stylo
Grandmaster Cheater Supreme
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Location: Israel
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| Posted: Mon Nov 24, 2008 12:38 pm Post subject: |
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@blankrider
it's not the code itself
it's just when i add the headers files to my projects and building the solution
i get all this wierd errors (something like 100 errors) that i don't understand what i do wrong
plus it doesn't say what libraries i need to include in the project so i guess that's the reason for the errors
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