ec MR_RESERVED,
"That name is reserved"
+ec MR_QUALITY,
+ "Password is too simple"
+
+ec MR_CONTAINER,
+ "No such container"
+
+ec MR_NEW_CONTAINER_NAME,
+ "The new container name is invalid"
+
+ec MR_ACCOUNT_NUMBER,
+ "No such account number"
+
+ec MR_CONTAINER_NO_PARENT,
+ "Parent container does not exist"
+
+ec MR_BAD_MAIL_STRING,
+ "Address refers to nonexistent domain or MIT internal mail server"
+
+ec MR_NO_KRB4,
+ "Unable to complete operation using Kerberos v4"
+
end