Man pages matching name imapd in section 8:

imapd.8.en	debian 10 / courier-imap
imapd.8.zh_CN	debian 10 / manpages-zh
imapd.8.zh_TW	debian 10 / manpages-zh
imapd.8.en	debian 11 / courier-imap
imapd.8.zh_CN	debian 11 / manpages-zh
imapd.8.zh_TW	debian 11 / manpages-zh
imapd.8.en	debian 12 / courier-imap
imapd.8.zh_CN	debian 12 / manpages-zh
imapd.8.zh_TW	debian 12 / manpages-zh