I am currently using this setup:
A SMS gateway that accepts email and forwards it as an SMS message
A commnd prompt emailer that accepts arguments
I created a batch file that will formulate the message according to the input parameters, (Although I’ve faced difficulties passing arguments from Dude) anyway, I created few ready made messages that will be triggered as locally executed command.
Also you can follow up this thread for similar issue:
http://forum.mikrotik.com/t/notification-execute-locally-run-a-vbs-script/25892/1