Hi
I've written simple library that sends e-mail using smtp protocol.
Everything works fine but I don't know how to get confirmation of reading
sent messages. I've read RFC docs about SMTP and MIME and couldn't find
anything about how to do this. I know that I can't force user to send me
this confirmation, usually e-mail client apps show message telling that
sender wishes to know if the message was read, so sending this request has
to be a part of some protocol. My question is - is this a part of smtp prot.
or maybe some other. Maybe someone could give an example what to send to
server and when..
thanks
Marcin
