pflogsumm(1) on Linux
The text 1c452030a863, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
Produce Postfix MTA logfile summary Copyright (C) 1998-2010 by James S. Seymour, Release 1.1.5