libquickmail

Designed for C/C++ developers, libquickmail is a free and open-source C library that facilitates a fast method for sending emails from applications, as well as for putting together MIME message bodies with multiple parts.

It offers support for To, Cc and Bcc recipients, along with file attachments without any size restrictions. For implementing SMTP communication, you can either use the built-in SMTP support or libcurl, the file transfer library with support for numerous protocols.

The syntax is quickmail {-h server | -o filename} [-p port] [-u username] [-w password] -f email [-t email] [-c email] [-b email] [-s subject] [-m mimetype] [-d body] [-a file] [-v]

As far as the parameters are concerned, -h server represents the host name or IP address of the SMTH server, -o filename is the name of file to dump mail content to, -p port is the TCP port used for SMTP connection (default is 25), -u username and -w password are the username and password to use for SMTP authentication, -f email is the sender's email address, -t email is the receiver's, -c email is the Cc's address, while -b email is the Bcc's.

Furthermore, -s subject represents the message's subject, -m mimetype is the MIME used for the body (must be specified before -d), -d body is the body (automatically read from the standard input if unspecified), -a file is the file to atach (multiple -a entries are accepted), while -v is the verbose mode.

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