diff --git a/zerver/lib/name_restrictions.py b/zerver/lib/name_restrictions.py
index b570c4d4bc..d43e97cfc6 100644
--- a/zerver/lib/name_restrictions.py
+++ b/zerver/lib/name_restrictions.py
@@ -21,7 +21,7 @@ def is_reserved_subdomain(subdomain: str) -> bool:
 
 
 def is_disposable_domain(domain: str) -> bool:
-    if domain.lower() in WHITELISTED_EMAIL_DOMAINS:
+    if domain.lower() in OVERRIDE_ALLOW_EMAIL_DOMAINS:
         return False
     return domain.lower() in DISPOSABLE_DOMAINS
 
@@ -371,7 +371,8 @@ GENERIC_RESERVED_SUBDOMAINS = {
 
 DISPOSABLE_DOMAINS = set(blocklist)
 
-WHITELISTED_EMAIL_DOMAINS = {
+OVERRIDE_ALLOW_EMAIL_DOMAINS = {
+    "airsi.de",
     # Controlled by https://www.abine.com; more legitimate than most
     # disposable domains
     "opayq.com",
diff --git a/zerver/tests/test_signup.py b/zerver/tests/test_signup.py
index 1175b36a40..7939499459 100644
--- a/zerver/tests/test_signup.py
+++ b/zerver/tests/test_signup.py
@@ -4683,7 +4683,7 @@ class TwoFactorAuthTest(ZulipTestCase):
 
 
 class NameRestrictionsTest(ZulipTestCase):
-    def test_whitelisted_disposable_domains(self) -> None:
+    def test_override_allow_email_domains(self) -> None:
         self.assertFalse(is_disposable_domain("OPayQ.com"))