How to block someone by email address on Hotmail?
                     How to Block Someone By 
Email Address On Hotmail?
 Toll Free Email 
Support Number 
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1-888-985-6722
Open your Hotmail account. If you are not 
already logged in, click Sign In Enter
Your Email Address And Password
Tap on Settings option
In this setting options select "Options Tab"
After that click on "Block sender"
Enter sender or domain here
After that click on enter button
Click to save after completing all the steps successfully
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1-888-985-6722
https://www.allinoneservicenumber.com/hotmail-customer-service/