{${lookup{$local_part}lsearch*{${extract{directory}{VDOMAINDATA}{${value}/grey_users}}}{$local_part}{}}}{}}}\
{${lookup{$local_part}lsearch{/etc/exim4/grey_users}{$local_part}{}}}} : \
${lookup{$local_part}lsearch{/var/lib/misc/$primary_hostname/mail-greylist}{$local_part}{}}
-HAS_DEFAULT_OPTIONS = ${if eq{${lookup{$local_part}dbmnz{/var/lib/misc/$primary_hostname/default-mail-options.db}{$value}{TRUE}}}{TRUE}}
+HAS_DEFAULT_OPTIONS = ${if and {\
+ {eq{${lookup{$local_part}dbmnz{/var/lib/misc/$primary_hostname/default-mail-options.db}{$value}{TRUE}}}{TRUE}}\
+ {exists{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}\
+ {! eq {${lookup{$local_part}dbmnz{${extract{directory}{VDOMAINDATA}{${value}/mail-forward.db}}}}}{}}\
+ }}
<%- if @is_rtmaster -%>
# This subject rewrite is embedded in double-quoted strings. As such, some of
# the items need more escaping than usual, otherwise \N becomes simply "N" and