- uid=EXIM_UID gid=EXIM_GID pid=pppp
-delivery (local) forking for child-open
-postfork: child-open
-fresh-exec forked for delivery (local): npppp
-delivery (local) forked for child-open: npppp
-delivery (local) forking for pipe-transport output
-postfork: pipe-transport output
-delivery (local) forked for pipe-transport output: npppp