Man pages matching name greylistd-setup-exim4 in section 8:

greylistd-setup-exim4.8.en	debian 10 / greylistd
greylistd-setup-exim4.8.en	debian 11 / greylistd
greylistd-setup-exim4.8.en	debian 12 / greylistd
greylistd-setup-exim4.8.en	debian 13 / greylistd