I am trying to configure Exim to reject any $local_part that match a pattern.For example, I know that none of the local_parts for any of the myriad of domains I host will ever contains numbers.  So, I know if someone send an email to fubar1235434@domain.tld, I know it is spam and can safely reject it.What would be the best ACL for this?
exim reject all local_part matching a pattern
exim;mail transport agent
ACL line could be the next:deny condition = ${lookup{$localpart}nwildlsearch{/path/to/the/black.list}{yes}{no}}While black.list contains PCRE regexes one per line like that:^.*[0-9].*^.*[!@#$%^&*()_+].*^.*sales.*