smtp.h

listen to what are they talking,窃听源码

int smtp_connect(char *host, int port, int timeout);
int smtp_sendmessage(int sd, char *AddrFrom, char **AddrTo, int AddrToCount,
		char *AddrReply, char *subject, char *msg, char **AttachFiles,
		int AttachCount, int timeout);
int smtp_disconnect(int sd);

int smtp_cmd(int sd, char *cmd, int success_code);
int smtp_getreply(int sd);
int smtp_sendfile(int sd, char *AddrFrom, char *AddrTo, char *filename);