+
+### router/420_exim4-config_hosted_aliases
+#################################
+
+# This router handles the local part in a case-insensitive way which
+# satisfies the RFCs requirement that postmaster be reachable regardless
+# of case. If you decide to handle /etc/aliases in a caseful way, you
+# need to make arrangements for a caseless postmaster.
+
+# hcoop-change: Custom rule that looks up the local_part and domain
+# in /etc/aliases.hosted.
+
+hosted_aliases:
+ debug_print = "R: hosted_aliases for $local_part@$domain"
+ driver = redirect
+ domains = +local_domains
+ allow_fail
+ allow_defer
+ data = ${lookup{$local_part@$domain}lsearch{/etc/aliases.hosted}}
+ .ifdef SYSTEM_ALIASES_USER
+ user = SYSTEM_ALIASES_USER
+ .endif
+ .ifdef SYSTEM_ALIASES_GROUP
+ group = SYSTEM_ALIASES_GROUP
+ .endif
+ .ifdef SYSTEM_ALIASES_FILE_TRANSPORT
+ file_transport = SYSTEM_ALIASES_FILE_TRANSPORT
+ .endif
+ .ifdef SYSTEM_ALIASES_PIPE_TRANSPORT
+ pipe_transport = SYSTEM_ALIASES_PIPE_TRANSPORT
+ .endif
+ .ifdef SYSTEM_ALIASES_DIRECTORY_TRANSPORT
+ directory_transport = SYSTEM_ALIASES_DIRECTORY_TRANSPORT
+ .endif