How to tell if an iphone has blocked an android number

I have a Samsung Galaxy S7 and was wondering how to tell if a friend has blocked me on their iphone.
Is there anyway of finding out if my texts that I send are being received and read or not.
Thank you

from Android Forums at AndroidCentral.com - Ask a Question //forums.androidcentral.com/ask-question/758301-how-tell-if-iphone-has-blocked-android-number-new-post.html
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