3 FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -bP keep_environment add_environment
5 # result via -bP enviroment
6 FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -bP environment
8 # result via -n -bP enviroment
9 FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -n -bP environment
11 # result via perl_at_start
12 FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -ps -be ''