Re: [exim] How to disable logging unroutable addresses?

Quoting Kjetil Torgrim Homme:

> most people these days use GNU grep ("the fastest grep in the West", as
> the slogan goes):
> $ ls -l /bin/egrep /bin/fgrep
> lrwxrwxrwx 1 root root 4 2006-08-11 05:53 /bin/egrep -> grep
> lrwxrwxrwx 1 root root 4 2006-08-11 05:53 /bin/fgrep -> grep

Sure, and fgrep is the same as grep -F. But matching fixed strings is
usually faster than matching regexes (depending on CPU and IO speed).