[Chapter 38] 38.9 Pitfalls
Author: Bryan Costales & Eric Allman
Date: 1999-01-06T22:49:47Z

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| Chapter 38 Rule-Set Testing with -bt |

## 38.9 Pitfalls

- Old programs and scripts that are designed to use `-bt` mode to test addresses and the like tend to break with each release of sendmail. Fortunately, they are easy to fix if you know the language involved.

- There is no way to currently define rules on the fly. Consequently, you need to modify a configuration file and run sendmail in rule-testing mode repeatedly until the new rules work.

38.8 Batch Rule-Set Testing |  | V. Appendixes