How can you find out if someone has deleted or blocked you on msn?

i have researched and tried all things. so far none of them work to 100% accuracy. 1. tools - options - privacy , and checking if you are on their list doesnt work. there were people who dont have me on their list and the tools options privacy checking list said they did. 3. msn plus has a contact clean up thing that shows if somebody has you or doesnt have you. that doenst work either because ive tried it with different contacts 4. online websites that help you check dont work either. 5. best way is to ask a friend or make a fake email and add them.

1.Contac MSN asking why you can't reach your MSN contact. If you are blocked, MSN will auto respond "User has specifically blocked this address." 2. Ask the person in real if they have. or ask a friend to add them and see if there online. 3.just add them from another address and check to see if you can see them online from your real account when they show up in your fake account

i dont have msn but im almost positive that if they dont appear to be signed on, sign on with a different name, and if they are on with your other username, then they blocked you unless there is an option in preferences where you can block anyone thats not on your friendlist