Man pages matching name procmailex in section 5:

procmailex.5.es	debian 10 / manpages-es-extra
procmailex.5.hu	debian 10 / manpages-hu
procmailex.5.ja	debian 10 / manpages-ja
procmailex.5.pl	debian 10 / manpages-pl
procmailex.5.en	debian 10 / procmail
procmailex.5.es	debian 11 / manpages-es
procmailex.5.hu	debian 11 / manpages-hu
procmailex.5.ja	debian 11 / manpages-ja
procmailex.5.en	debian 11 / procmail
procmailex.5.es	debian 12 / manpages-es
procmailex.5.hu	debian 12 / manpages-hu
procmailex.5.ja	debian 12 / manpages-ja
procmailex.5.en	debian 12 / procmail