Man pages matching name inndcomm in section 3:

inndcomm.3.en	debian 10 / inn
inndcomm.3.en	debian 10 / inn2-dev
inndcomm.3.en	debian 11 / inn
inndcomm.3.en	debian 11 / inn2-dev
inndcomm.3.en	debian 12 / inn