#1024 Add mail-institution-batch-size to 500 and set mail-institution… (

#580)

…-mail-usage-expression to daily

commenting out forwardtosyslog still resulted in enabling on debian (#…

…570)

variable max message size

create an iptables backup file for safety (#559)

create an iptables backup file for safety (#559)

create an iptables backup file for safety