Man pages matching name send in section 1mh:

send.1mh.en	debian 10 / mmh
send.1mh.en	debian 10 / nmh
send.1mh.en	debian 11 / mmh
send.1mh.en	debian 11 / nmh
send.1mh.en	debian 12 / mmh
send.1mh.en	debian 12 / nmh