We are going to discovers a topic that is how can block or unblock MMS & SMS on Samsung Galaxy Note. Smartphone by selecting phone numbers or contacts on a block list of course you can done in your Samsung Galaxy Note 4 it has that feature, And it is in-built features called as spam. Just follow steps are given below:
Open the Messages application from your Galaxy Note 4.
Tap Menu on your Samsung Galaxy Note 4.
Make sure the Spam filter box is checked or not.
Select and Add to spam numbers.
Tap and select the phone number you like to block from your contact list.
Select Save when it is completed, and again you will not see text messages or notifications from that particular number.
Suppose you need to unblock the phone numbers from the blocked list even you can done in your Galaxy Note 4:
Get back to the Add to spam numbers screen.
Tap and hold the number, And then select Delete > OK to remove the number from the block list.
I hope the above steps are helpful to you when it is necessary to block or unblock the MMS or SMS from your Samsung Galaxy Note 4.