For any collector or dealer it's important to keep up to date on the latest majolica reproductions.
Some are better than others. Most are not marked and intend to deceive.
Here are a few I've seen online recently.
As I have said many times in the past, there's nothing wrong with buying a reproduction so long as you know that is what you are buying. My problem is always with those who choose to misrepresent the article as an antique, like the "marked Etruscan" asparagus mug.
If you know what is available in the marketplace you're in a better place to make an informed purchase.