re: [Exim] wildcard blacklisting by HELO?

Can anybody help here, please?

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Hi there,
I wish to black list at smtp time based on the HELO command. At the
moment I have a number of ACLs such as the one that follows, hardwired
into my exim.conf file.

deny message = "Blacklisted HELO"
condition = ${if eq{$sender_helo_name}{youkickedmydog.net}{yes}{no}}

What I wish to do is actually be able to place all the restricted HELO
hosts into an external file and include wild cards.

i.e the file would have one host per line and would include entries such
as:

youkickedmydog.net
*.dialup.comcast.net

Thanks in advance.

Scott