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 update free/busy details periodically, the following software is 15 recommended: 16 17 Cron:: cron 18 19 The management Web interface requires the following packages: 20 21 Apache:: apache2 22 Babel:: python-babel 23 24 Although not necessarily within the scope of the deployment of this software, 25 the following mail storage solutions would be used to receive and hold 26 messages: 27 28 Cyrus:: cyrus-imapd 29 Dovecot:: dovecot-imapd dovecot-ldap dovecot-lmtpd 30 31 Some test programs need additional programs provided by other packages: 32 33 envsubst:: gettext-base