The smtpmail library provides a simple interface for sending E-Mails over a SMTP server from a C or C++ language program. I can be included in the source code directly or just dynamically linked as a DLL or .so file. A common use would be in mailing software (e.g. Newsletter programs or E-mail clients).
- A working C/C++ compiler and linker (of course)
- openssl development libraries
smtpmail is intended to be simple and so there is no complex framework or API. The only and most important features are:
- Send mail to one or more recipients
- Support of TLS servers
- Unfortunately it is much work to implement all the wishes I have and so there are also plans for the future:
Support for gMail: For now it is not possible to log in with your Googlemail account credentials. Though TLS is supported, Google seems to want more at authentication.
To send HTML mails: Unfortunately smtpmail cannot send HTML formatted mails. It will handle them, but in every test no HTML mail ever reached the recipient.
- SSL support
- Better TLS support
Compile the library and test program:
make
Compile shared library:
make shared
Include the library
#include "smtpMail.h"Inizialize a simple mail object
struct smtpMail *mail;
char *from = "noanswer@mail.com";
char *to = "recp@mail.com";
char *sub = "Subject";
char *body = "The mail body";
mail = smtpMail_init(from, to, sub, body);Send the mail object
unsigned char res;
char *server = "YOUR_SMTP_SERVER"; /* Your SMTP server */
char *user = "YOUR_USERNAME"; /* Your username */
char *pass = "YOUR_PASSWORD"; /* Your password */
res = smtpMail_send(mail, server, 25, user, pass);
if( res == SMTP_ERR_NOERROR ) {
printf("Mail successfully sent to: %s!\n", mail->to);
} else {
fprintf(stderr, "There was an error sending the mail: %d\n", res);
system(1);
}See the testMail.c file for a full example.