Bug#214241: exim4: Exim should monitor memory usage in addition to system load.

[Greg Kochanski]

Package: exim4
Version: 4.34-4
Followup-For: Bug #214241

Some spam filters, especially Bayesian filters, can take
megabytes of memory.  (I have one, which when loaded with
10000 spam messages and 10000 good messages, takes close to 100MB.)

It makes sense, then, that exim have functionality to limit
delivery when the free memory of the OS is very small.
One could also limit SMTP acceptance when the free RAM
is small and the system is starting to swap.


-- Package-specific info:
Exim version 4.34 #1 built 27-Jul-2004 18:06:50
Copyright (c) University of Cambridge 2004
Berkeley DB: Sleepycat Software: Berkeley DB 3.2.9: (May 26, 2004)
Support for: iconv() IPv6 GnuTLS
Lookups: lsearch wildlsearch nwildlsearch iplsearch cdb dbm dbmnz dsearch nis nis0 passwd
Authenticators: cram_md5 plaintext
Routers: accept dnslookup ipliteral manualroute queryprogram redirect
Transports: appendfile/maildir/mailstore autoreply lmtp pipe smtp
Fixed never_users: 0
Configuration file is /var/lib/exim4/config.autogenerated
# /etc/exim4/update-exim4.conf.conf
#
# Edit this file and /etc/mailname by hand and execute update-exim4.conf
# yourself or use 'dpkg-reconfigure exim4-config'

dc_eximconfig_configtype='smarthost'
dc_other_hostnames='gpk.wftp.org : gpk.homeunix.net : kochanski.org : pribble.com : kochibble.com'
dc_local_interfaces=''
dc_readhost='kochanski.org'
dc_relay_domains=''
dc_minimaldns='false'
dc_relay_nets='192.168.1.0/25 : 192.168.1.128/25 : 127.0.0.1'
dc_smarthost='smtp.ntlworld.com'
CFILEMODE='644'
dc_use_split_config='true'
dc_hide_mailname='true'
mailname:kochanski.org

-- System Information:
Debian Release: 3.1
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.4.27-1-686
Locale: LANG=C, LC_CTYPE=C

Versions of packages exim4 depends on:
ii  exim4-base                    4.34-4     EXperimental Internal Mailer -- a 
ii  exim4-daemon-light            4.34-4     Lightweight version of the Exim (v

-- no debconf information