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INSTALL.mbox.md (2368B)

      1 The qmail package includes a local delivery agent, qmail-local, which
      2 provides user-controlled mailing lists, cross-host alias loop detection,
      3 and many other important qmail features.
      4 
      5 There's one important difference between qmail-local and binmail:
      6 qmail-local delivers mail by default into ~user/Mailbox, rather than
      7 /var/spool/mail/user. It uses mbox format, with lockf locking on systems
      8 that don't have flock (HP/UX, Solaris), and flock locking otherwise.
      9 
     10 This file explains how to switch your system to ~user/Mailbox. You
     11 aren't required to do this; for further discussion of /var/spool/mail,
     12 and an explanation of how to continue using binmail for local
     13 deliveries, see INSTALL.vsm.md.
     14 
     15 The basic procedure for switching to ~user/Mailbox is simple:
     16 
     17 * Move each /var/spool/mail/user to ~user/Mailbox. For safety, do
     18   this in single-user mode.
     19 
     20 * As root, set up a symbolic link from /var/spool/mail/user to
     21   ~user/Mailbox for each user. /var/spool/mail should be mode 1777,
     22   so users will not be able to accidentally remove these links.
     23 
     24 A few mail programs are unable to handle symbolic links, so you will
     25 have to configure them to look at ~user/Mailbox directly:
     26 
     27 * procmail: Change SYSTEM_MBOX in config.h and recompile; or, with
     28   recent versions, define MAILSPOOLHOME in src/authenticate.c.
     29 
     30 An alternative to symbolic links is hlfsd. Consult the documentation for
     31 hlfsd if it is included in your operating system.
     32 
     33 If /var/spool/mail is large, you can gain extra speed by configuring
     34 all your mail software to look at ~user/Mailbox directly:
     35 
     36 * Most MUAs: Put "setenv MAIL $HOME/Mailbox" in your system-wide
     37   .cshrc and "MAIL=$HOME/Mailbox; export MAIL" in your system-wide
     38   .profile.
     39 
     40 * elm: Change "mailbox" to "Mailbox" around line 388 of newmbox.c and
     41   recompile. (elm looks at $MAIL, but without this change elm will
     42   fail if two users try to read mail simultaneously.)
     43 
     44 * pine: Put "inbox-path=Mailbox" in your system-wide pine.conf.
     45   (For pine versions more recent than 3.91, see also FAQ 6.2.)
     46 
     47 * qpopper 2.2: Change /.mail to /Mailbox in pop_dropcopy.c and
     48   recompile with -DHOMEDIRMAIL in CFLAGS.
     49 
     50 Some vendors, in a misguided attempt to solve the security problems of
     51 /var/spool/mail, have made all their mail software setgid mail. After
     52 you move the mailboxes, you can -- and, for security, should -- remove
     53 those setgid-mail bits.