[Exim] Matching HELO against valid hostnames

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Autor: Kevin Reed
Data:  
A: exim-users
Assumpte: [Exim] Matching HELO against valid hostnames
drop log_message = HELO mismatch
      set acl_m9  = ${lookup{$sender_helo_name}
partial-lsearch{/usr/local/exim/check-helo} \
                     { ${if eq{$value}{}{$sender_helo_name}{$value}}}{}}
      condition   = ${if and { \
                               {!eq{$acl_m9}{}} \


{!match{$sender_host_name}{${rxquote:$acl_m9}\N$\N}} \
                             } \
                            {yes}{no}}
      delay       = 30s


When comparing yahoo.com as the helo with a hostname of
web13308.mail.yahoo.com [216.136.175.44] the above fails like:

> > >>> processing "drop"
> > >>> check set = ${lookup{$sender_helo_name}
> > partial-lsearch{/usr/local/exim/helo-check} { ${if
> > eq{$value}{}{$sender_helo_name}{$value}}}{}}
> > >>>           =  yahoo.com
> > >>> check condition = ${if and { {!eq{$acl_m9}{}}
> > {!match{$sender_host_name}{${rxquote:$acl_m9}\N$\N}} } {yes}{no}}
> > >>>                 = yes
> > >>> check delay = 30s
> > >>> delay modifier requests 30-second delay
> > >>> drop: condition test succeeded
> > 550 Administrative prohibition
> > LOG: H=web13308.mail.yahoo.com [216.136.175.44] rejected
> EHLO or HELO
> > yahoo.com: HELO mismatch


I'm guessing the match is wrong, perhaps it is not matching a sub of the
whole hostname?