Let's assume that you send an email to
[email protected]
If abcmail.com blocks your mail (because, perhaps, your IP address has become associated with spam) then your own email service won't get a 'receipt' from abcmail's server and you'll get a 'bounce' message.
However if Fred Bloggs has simply configured his email settings to stop abcmail.com forwarding your mail from their server to his inbox, then your mail will get as far as abcmail's server, which will send a 'receipt' back to your own email service, saying that the mail has been received by them. (i.e. you
won't get a 'bounce' message).