Simply put... can I stop a buyer from sending me insulting messages after the sale?

[downdrifting]

I am having a difficult time with a buyer who is relatively new to eBay.  She has sent 10 messages so far telling me what I should have done different to complete the sale.  She has escalated to being disruptive and insulting when she writes.  I tried to appease her in the beginning by answering her questions a couple of times.  I have since stopped because she keeps writing the same thing.  I have already blocked her as a bidder / buyer.  I know that there are other questions similar to this but I just want to know if I can block her from sending me these irritating messages?  That's all I want to know.  

Thanks to everyone in the community for the help!

[jacbarcollectibles]

Yes you can kind of block this person from contacting you.  The problem is that there are several way to contact a user so this one only works in a specific instance.  go to your My eBay page.  Click on Account > Site Preferences.  Scroll down until you see Buyer Requirements.  Click on Edit.  Make sure you set your buyer requirements as you see fit and at the very bottom is a check box to block communication from blocked users.  This block will get most of the messages but there are a few other ways to communicate which cannot be blocked.