How to block unwarranted numbers

[S6question]

I tried to block a number that kept texting me an added it to spam folder. But now I am receiving text messages as emails, how do I block this number for good?

 

[Laura Knotek]

Hi and welcome to AndroidCentral.

What device do you have? What messaging app are you using?

There are call/SMS blocking apps in Google Play Store. Some will not work with the default messaging app on Lollipop or Marshmallow, but they have options that will work on Lollipop and Marshmallow.