# mailbox locking
-exim -odi userx
-Transport: local_delivery
+exim -odi -f t1@foo userx
+Subject: First
+
+local_delivery
First message.
****
exim_lock -v test-mail/userx
-exim -odi userx
-Transport: local_delivery
+exim -odi -f t1@foo userx
+Subject: Second
+
+local_delivery
Second message
****
exim -qf
****
exim_lock -v -fcntl test-mail/userx
-exim -odi userx
-Transport: local_delivery_fcntl
+exim -odi -f t2@foo userx
+Subject: Third
+
+local_delivery_fcntl
Third message
****
exim -qf
****
exim_lock -v -fcntl test-mail/userx
-exim -odi userx
-Transport: local_delivery_fcntl_blocking
+exim -odi -f t3@foo userx
+Subject: Fourth
+
+local_delivery_fcntl_blocking
Fourth message
****
exim -qf