system: Linux mars.sprixweb.com 3.10.0-1160.119.1.el7.x86_64 #1 SMP Tue Jun 4 14:43:51 UTC 2024 x86_64

cmd: 

This version of procmail supports Maildir folders.

To make procmail to deliver into a Maildir folder, just append
a slash (/) to the name of the maildir folder in your ~/.procmailrc file.
For example, the following rule:

:0
* ^Resent-Sender.*debian-user-request@lists.debian.org
debian-user/

will deliver all mail from the debian-user mailing list to the Maildir
folder "debian-user".