Yes... they won't be able to respond, but they will get it..... done the same thing before..
That's why I keep the WHOLE message thread... I did it to my "lovely" ex who "all of a sudden" decided to break up with me, call me a liar (among other kind things), and run away with her newborn son (not mine)..... childish and dangerous... but it's all on her and her family... I have washed my hands of her and her drama .....
I hope so. I just sent a message to a person who I used to trust, It was a polite message. I want her to read it, but I want no further contact.
make a second account and find out.