For sure! My Maremma does the same thing. She greets every delivery with a bark that sounds like she's challenging them.

Oh, definitely! My Maremma takes her job as the watchdog very seriously. If the mailman even breathes too loudly, she’s on high alert. It’s funny because while she looks intimidating, she’s such a sweetheart once she knows who belongs. Maremmas have a strong instinct to protect their territory, which makes them great guardians.