[pandas] Remove exception data from another dataframe

import pandas as pd


EXCLUDE = pd.DataFrame({'email':['[email protected]','[email protected]']})
USERS = pd.DataFrame({'email':['[email protected]','[email protected]','[email protected]','[email protected]','[email protected]']})

df_result = pd.merge(USERS, EXCLUDE, how='outer', indicator=True)
df_result[df_result._merge == 'left_only'].drop(labels=['_merge'], axis=1)