1 = Prerequisites = 2 3 Depending on the mail transport agent (MTA) chosen, the following packages are 4 required for this software to work on Debian systems: 5 6 Exim:: exim4-daemon-heavy 7 Postfix:: postfix postfix-ldap 8 9 The software itself requires the following packages: 10 11 Python:: python 12 pytz:: python-tz 13 14 To provide localised messages: 15 16 gettext:: gettext 17 18 To update free/busy details periodically, the following software is 19 recommended: 20 21 Cron:: cron 22 23 The management Web interface requires the following packages: 24 25 Apache:: apache2 26 Babel:: python-babel 27 28 Although not necessarily within the scope of the deployment of this software, 29 the following mail storage solutions would be used to receive and hold 30 messages: 31 32 Cyrus:: cyrus-imapd 33 Dovecot:: dovecot-imapd dovecot-ldap dovecot-lmtpd 34 35 Some test programs need additional programs provided by other packages: 36 37 envsubst:: gettext-base