diff --git a/lib/domains/blacklist.txt b/lib/domains/blacklist.txt
index cce0271a83..fbfd677a29 100644
--- a/lib/domains/blacklist.txt
+++ b/lib/domains/blacklist.txt
@@ -6,3 +6,4 @@ australia.edu
 alumni.nottingham.ac.uk
 alumni.cmu.edu
 int.edu.gr
+ir
diff --git a/test/swot/SwotTest.kt b/test/swot/SwotTest.kt
index 97f54d36b0..03b2e854f1 100644
--- a/test/swot/SwotTest.kt
+++ b/test/swot/SwotTest.kt
@@ -44,6 +44,7 @@ class SwotTest : TestCase() {
         assertEquals (true , isAcademic("lee@mail.harvard.edu"))
 
         assertEquals(false, isAcademic("imposter@si.edu"))
+        assertEquals(false, isAcademic("lee@acmt.ac.ir"))
     }
 
     fun testSchoolNames() {