diff --git a/app/build.gradle b/app/build.gradle
index ca23ec53..c1f2a55f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -62,7 +62,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.github.SimpleMobileTools:Simple-Commons:d04f40487b'
+    implementation 'com.github.SimpleMobileTools:Simple-Commons:59f709a2a8'
     implementation 'org.greenrobot:eventbus:3.3.1'
     implementation 'com.github.tibbi:IndicatorFastScroll:4524cd0b61'
     implementation 'com.github.tibbi:android-smsmms:fe58a74d59'
diff --git a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/SmsReceiver.kt b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/SmsReceiver.kt
index 17f26eb1..41db8a6e 100644
--- a/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/SmsReceiver.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/smsmessenger/receivers/SmsReceiver.kt
@@ -10,6 +10,7 @@ import android.provider.Telephony
 import com.bumptech.glide.Glide
 import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.bumptech.glide.request.RequestOptions
+import com.simplemobiletools.commons.extensions.baseConfig
 import com.simplemobiletools.commons.extensions.getMyContactsCursor
 import com.simplemobiletools.commons.extensions.isNumberBlocked
 import com.simplemobiletools.commons.helpers.SimpleContactsHelper
@@ -48,7 +49,9 @@ class SmsReceiver : BroadcastReceiver() {
 
             Handler(Looper.getMainLooper()).post {
                 val privateCursor = context.getMyContactsCursor(false, true)
-                if (!context.isNumberBlocked(address)) {
+                val simpleContactsHelper = SimpleContactsHelper(context)
+                val isBlocked = context.baseConfig.blockUnknownNumbers && !simpleContactsHelper.exists(address)
+                if (!isBlocked && !context.isNumberBlocked(address)) {
                     ensureBackgroundThread {
                         val newMessageId = context.insertNewSMS(address, subject, body, date, read, threadId, type, subscriptionId)