The easiest option would be indeed creating a separate test script for sending the results.
Alternative option would be
kicking off another JMeter Slave instance at the same host with the master
Limiting the SMTP Sampler to be executed only on that host via If Controller and __machineName() or __machineIP() functions combination like this:
This way you will be able to run SMTP Sampler only on the machine where the .jtl file lives.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…