I have next test plan:
Test Plan - set up (1 thread 1 loop) - Thread Group 1 (2 threads, 2 loops) - Thread Group 2 (2 threads, 2 loops) - Thread Group 3 (2 threads, 2 loops) - tear down (1 thread 1 loop)
In tear down section I send an email about test results. But in some cases I get several emails instead of one. I even can receive email during script execution. I use SMPT Sampler to send email.
Why can tear down run several times?