You don't need sendmail, you could just use the mailx command (which is part of the mailx package in Fedora). See my post here
for an example on how to set it up and use it (you can use mailx instead of nail, which is just a link to mailx now). You'll probably get a message saying "Error in certificate: Peer's certificate issuer is not recognized.", but you can ignore it, the mail should still go through.