Man pages matching name smrsh in section 8:

smrsh.8.ja	debian 10 / manpages-ja
smrsh.8.en	debian 10 / sendmail-bin
smrsh.8.ja	debian 11 / manpages-ja
smrsh.8.en	debian 11 / sendmail-bin
smrsh.8.ja	debian 12 / manpages-ja
smrsh.8.en	debian 12 / sendmail-bin