Susan sends an email to a client and sends copies to Tim and to an internal company mailing list of co-workers. If Tim wants to make a comment for all of them to read, he uses Reply to All, but if he just wants to tell Susan that he agrees with her, he uses Reply. His reply does not reach anyone that Susan put on her Bcc list, because that list is not shared with anyone.
Susanak mezu bat bidali dio bezero bati, eta mezuaren kopia Tomasi eta etxe barruko lankide-zerrenda bati. Tomasek denentzako ohar bat idatzi nahi badu, 'Erantzun denei' erabiliko du, baina Susanari ados dagoela adierazi nahi badio besterik gabe, Erantzun erabiliko du. Kontuan izan Susanak Bcc zerrendan norbaiten helbidea sartu badu, hartzaile horri ez zaiola erantzunik iritsiko.