add test and seperate option handling
fix variable name for command string
fix test expected string and ensure that command string has valid format
more matching
Merge pull request #10 from haw-hh-ai-lab/add_standalone_master_record

Add standalone master record
add needed arguments to config and implement additional rules to allow
configuration of our mailserver
fix forgotten configs
restrict to loopback only for relay-only
make relay and config mutually exlusive, add overlapping parameters to
config
removed argument sender_hostname. It is not a valid postfix config
value, but a parameter in postfix::relay class.
add a test for new puppet class postfix::rule
move test from classes to defines where it belongs