best is to spam her out and ignore any emails coming thru. "she" may not be in Russia. i am American, but currently am close to 55 latitude north and 55 east. deep in Russia. Jackie gets best annswer, my answer is only entertainment for you!
Maintain vigilance and appropriate sagacity+ discernment when receiving ominous emails. What these type of"requests" might incur, you will not be a benefactor of.
Don't condition yourself under any false-presumption or contrive some unjustifiable discretionary pretext that any Russian who disseminates an "email" to you is financially-oriented, invidious, or fraudulent. I've communicated with a few Russians via my personal yahoo email-address, although certain less magnificent instances of disquietude and discord did "embroil".
You put the emails into your spam folder and ignore them
Just ignore them. I get those in my junk box all the time.
Thanks Jackie, she wants $250 for a visa