Man pages matching name exim4-localscan-plugin-config in section 1:

exim4-localscan-plugin-config.1.en	debian 10 / exim4-dev
exim4-localscan-plugin-config.1.en	debian 11 / exim4-dev
exim4-localscan-plugin-config.1.en	debian 12 / exim4-dev