Using maildirs on Ubuntu [en/fr]
Among all the operations that I do not so frequently, there's the one consisting in setting up system-wide maildirs. As I always forget how to redefine this pesky MAIL variable set by default to /var/mail/username, I've decided to blog about it to record the solution:   If you're directed to  /etc/login.defs  forget about it, just read the comments in it that points you to /etc/pam.d/* files.   The change to do are in   /etc/pam.d/su:   #session    optional   pam_mail.so  nopen  session    optional   pam_mail.so dir=~/Maildir nopen  /etc/pam.d/sshd:  #session    optional     pam_mail.so standard noenv # [1]  session    optional     pam_mail.so dir=~/Maildir standard   /etc/pam.d/login:  #session    optional   pam_mail.so standard  session    optional     pam_mail.so dir=~/Maildir standard   I us...