--- /dev/null
+# Exim test configuration 0291
+
+exim_path = EXIM_PATH
+host_lookup_order = bydns
+primary_hostname = myhost.test.ex
+rfc1413_query_timeout = 0s
+spool_directory = DIR/spool
+log_file_path = DIR/spool/log/%slog
+gecos_pattern = ""
+gecos_name = CALLER_NAME
+trusted_users = CALLER
+
+# ----- Main settings -----
+
+
+# ------ Routers ------
+
+begin routers
+
+# a=>b and b=>c
+r1:
+ driver = redirect
+ domains = one
+ data = ${if eq{$local_part}{a}{b}{${if eq{$local_part}{b}{c}}}}
+ qualify_preserve_domain
+
+# a=>b and b=>c, but not if generated by a
+r2:
+ driver = redirect
+ domains = two
+ data = ${if eq{$local_part}{a}{b}{${if eq{$local_part}{b}{c}}}}
+ qualify_preserve_domain
+ no_repeat_use
+
+accept:
+ driver = accept
+ verify_only
+
+# End