If you don't want to be accountable for your words then open a freebie
disposable webmail account and send from there. Using a bogus e-mail in
your e-mail client won't eliminate you getting tracked using the
Received headers in the received copy of your e-mail, or getting
identified by time and Message-ID, or altering your ISP's behavior, if
used, to insert your IP address in the headers. If you're looking to
become a newbie spammer, this is not the newsgroup for you.