How to systemwide change MAIL=/var/mail/username to /home/username/Maildir

[Felix Erkinger <erkinger@gmx.net>]

I'm currently wondering, why my system is constantly ignoring any attempt
in /etc/login.defs to change the mail Variable to Maildir style.

I tried QMAIL, MAILFILE, MAILDIR, but no effect (stays /var/mail/xy) so far.
the /etc/pam.d/login looks like it does not change it.
I've tried it via ssh login, no effect
(the bruteforce attempt grep -r \/var\/mail * in /etc is not comming to an end)

What do i do wrong ?


Thanks, felix.