+# fail
+exim -DOPT=fail@test.ex -bh 127.0.0.1
+helo test
+mail from:<userx@test.ex>
+rcpt to:<userx@test.ex>
+QUIT
+****
+# check can use tainted data
+exim -DOPT='$sender_address/defer_ok' -bh 127.0.0.1
+helo test
+mail from:<userx@test.ex>
+rcpt to:<userx@test.ex>
+data
+From: userx@test.ex
+Subject: testing
+.
+QUIT
+****
+no_msglog_check