The guests were refused by the Hotel zum Hirschen in Lam, Bavaria, according to the Ynet news site, which said a review of the message confirmed its authenticity.
The report did not specify when the message was sent.
The tourists filed a complaint with the Bavarian Justice Ministry’s commissioner for combating antisemitism, the report added.
The guests also filed complaints with Booking.com, which has temporarily removed the property from its platform.
Germany continues to face persistently high levels of antisemitism, with 2,197 anti-Jewish incidents recorded in Berlin alone in 2025, according to a report published Wednesday by the German government’s antisemitism watchdog. The figure was down about 13 percent from 2,521 incidents the previous year, but remained more than double pre-October 7, 2023, levels.