53 lines
2.4 KiB
Text
53 lines
2.4 KiB
Text
The qmail package includes a local delivery agent, qmail-local, which
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provides user-controlled mailing lists, cross-host alias loop detection,
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and many other important qmail features.
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There's one important difference between qmail-local and binmail:
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qmail-local delivers mail by default into ~user/Mailbox, rather than
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/var/spool/mail/user. It uses mbox format, with lockf locking on systems
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that don't have flock (HP/UX, Solaris), and flock locking otherwise.
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This file explains how to switch your system to ~user/Mailbox. You
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aren't required to do this; for further discussion of /var/spool/mail,
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and an explanation of how to continue using binmail for local
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deliveries, see INSTALL.vsm.
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The basic procedure for switching to ~user/Mailbox is simple:
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* Move each /var/spool/mail/user to ~user/Mailbox. For safety, do
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this in single-user mode.
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* As root, set up a symbolic link from /var/spool/mail/user to
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~user/Mailbox for each user. /var/spool/mail should be mode 1777,
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so users will not be able to accidentally remove these links.
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A few mail programs are unable to handle symbolic links, so you will
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have to configure them to look at ~user/Mailbox directly:
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* procmail: Change SYSTEM_MBOX in config.h and recompile; or, with
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recent versions, define MAILSPOOLHOME in src/authenticate.c.
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An alternative to symbolic links is hlfsd. Consult the documentation for
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hlfsd if it is included in your operating system.
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If /var/spool/mail is large, you can gain extra speed by configuring
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all your mail software to look at ~user/Mailbox directly:
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* Most MUAs: Put ``setenv MAIL $HOME/Mailbox'' in your system-wide
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.cshrc and ``MAIL=$HOME/Mailbox; export MAIL'' in your system-wide
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.profile.
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* elm: Change "mailbox" to "Mailbox" around line 388 of newmbox.c and
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recompile. (elm looks at $MAIL, but without this change elm will
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fail if two users try to read mail simultaneously.)
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* pine: Put ``inbox-path=Mailbox'' in your system-wide pine.conf.
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(For pine versions more recent than 3.91, see also FAQ 6.2.)
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* qpopper 2.2: Change /.mail to /Mailbox in pop_dropcopy.c and
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recompile with -DHOMEDIRMAIL in CFLAGS.
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Some vendors, in a misguided attempt to solve the security problems of
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/var/spool/mail, have made all their mail software setgid mail. After
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you move the mailboxes, you can---and, for security, should---remove
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those setgid-mail bits.
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