Hi, ------------------------------------------------------------------------- Koha version -16.5.01 (upgraded from 3.16.00) OS: Ubuntu - 14.04 server edition (upgraded from 12.04) Install method - Packages Postfix - working successfully. -------------------------------------------------------------------------- I am not sure how to set up and make necessary modifications in cronjobs and need your help. Our library works from 9:30 am to 5.30 pm on week days and 9:30-1:30 pm on every saturday. (Desktop machine) as server, will be shutdown in the evening everyday until library receives a dedicated server machine. preliminary set up: 1. In System preferences >EnhancedMessagingPreferences > is set to Allow. 2. Each patron, is enabled to get check in, checkout, overdue notices. 3. # crotab -e, shows, all lines are commented. 4. Is it required to run even for packages install method ? or is it already setup? # ENVIRONMENT: PERL5LIB=/usr/share/koha/lib KOHA_CONF=/etc/koha/koha-conf.xml (http://kohaworkshop.pbworks.com/w/page/7060237/koha%20cronjobs) 5. /usr/share/koha/bin/cronjobs shows - crontab.example and it has all the required instructions. 6. currently, after setting up postfix, overdue message, advance due notice, check in, check out , new registration notice all are working,. but I wanted to properly setup timings as per our library's open and closing hours. Should "crontab.example" file be renamed ? or copied to crontab ? or how to use this file ? Kindly share your best practices? with thanks Satish MV Librarian Govt. Engineering College, Hassan Karnataka.