Re: how to force maximum mailbox size limit

Rajiv,

At 11:09 AM 14/4/2002, rajiv saha wrote:
> hello sir,
>
>  I am in need of a procmail script which will "force
> maximum mailbox size limit(such as, mail box size
> should not increase 4MB)".

Rajiv,

After reading the excellent tips in the procmail mailing list, I came up with 
the following recipe.  I actually do not use this yet, so it has not been fully 
tested, but here you go.

I call it by assigning QUOTA then including the recipe, e.g.

QUOTA=4000000            # bytes
INCLUDERC=/your/path/to/quota.rc




# quota.rc by Stuart Clark
#
# If mailbox size exceeds QUOTA, send reply email
# using /etc/procmail/messages/bounce-exceed-quota.txt
#
LOGFILE="/tmp/procmail.quota.log"
VERBOSE=YES

PATH="/usr/bin:$PATH:/usr/local/bin"
SHELL=/bin/sh

:0  # if QUOTA is set to something, then..
* QUOTA ?? .
{
        # How can I do a conditional test, not on the header or body, but on the
        # variable ${MAILBOX_SIZE_}, then reject the message if 
${MAILBOX_SIZE_} is
        # greater than QUOTA bytes?   Answer..

        MAILBOX_SIZE_REPORT_=`wc -c ${DEFAULT}`

        :0  # if
        * MAILBOX_SIZE_REPORT_ ?? ^^ *\/[0-9]+
        { MAILBOX_SIZE_=${MATCH} }

        # Note: the next recipe tests the size of the box without the current 
message; if
        # the box has exactly QUOTA bytes and you get any size message in, it 
will be
        # accepted.  If you want to test based on the size that the box would 
be if
        # the message were added to it, add the size of the current message 
before
        # comparing to QUOTA

        :0  # positive difference means box is already bigger than 
$MAILBOX_SIZE_ bytes
        * $  ${MAILBOX_SIZE_}^0
        * $ -${QUOTA}^0
        {
                # keep a backup for a while
                :0c
                /tmp/quota.${LOGNAME}

                :0 # lose items we don't want to bounce
                * 9876543210^0 ^FROM_DAEMON
                * 1^0 ^X-Loop: X-BOUNCE-FILE-SIZE
                /dev/null

                :0fi # double the head, lose the body
                * ^Subject: \/.*
                | sed -eH -e /./b -eg -eq

                SUBJECT="${MATCH}"

                :0f # invert and let second copy of head (the new body) be 
cited:
                | formail -rtk \
                        -I"Subject: Returned Mail: ${SUBJECT}" \
                        -I"From: MAILER-DAEMON(_at_)tpg(_dot_)com(_dot_)au" \
                        -A"X-Bounced-Reason: Mailbox quota exceeded ${QUOTA} 
bytes" \
                        -A"X-Loop: X-BOUNCE-FILE-SIZE"

               # insert explanation between head and new body;
               :0wf # explanation file should end with an empty line
               | sed -e '1,/^$/!b' -e/./b  -e 'r 
/etc/procmail/messages/bounce-exceed-quota.txt'

               :0 # send this bounced message from 
MAILER-DAEMON(_at_)your(_dot_)domain using sendmail
               ! -fMAILER-DAEMON(_at_)your(_dot_)domain -t
        }
}
#end




Kind regards,  Stuart


  Stuart Clark                              sclark(_at_)tpg(_dot_)com(_dot_)au
_______________________________________________________________
  System Administration Supervisor
 (02) 9850 0907

  TPG Internet 
 www.tpg.com.au 

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