diff --git a/install/debian/11/exim/exim4.conf.template b/install/debian/11/exim/exim4.conf.template
index cbc2e75f6..3f09a2e88 100644
--- a/install/debian/11/exim/exim4.conf.template
+++ b/install/debian/11/exim/exim4.conf.template
@@ -322,7 +322,7 @@ remote_smtp:
   dkim_private_key = DKIM_PRIVATE_KEY
   dkim_canon = relaxed
   dkim_strict = 0
-  hosts_try_fastopen = !*.l.google.com
+  hosts_try_fastopen = 
   hosts_try_chunking = !93.188.3.0/24
 
 procmail:
diff --git a/install/debian/11/exim/exim4.conf.template-RC b/install/debian/11/exim/exim4.conf.template-RC
index 5a4d04142..82b97d4e0 100644
--- a/install/debian/11/exim/exim4.conf.template-RC
+++ b/install/debian/11/exim/exim4.conf.template-RC
@@ -353,7 +353,7 @@ remote_smtp:
   dkim_private_key = DKIM_PRIVATE_KEY
   dkim_canon = relaxed
   dkim_strict = 0
-  hosts_try_fastopen = !*.l.google.com
+  hosts_try_fastopen = 
   hosts_try_chunking = !93.188.3.0/24
 
 procmail:
diff --git a/install/debian/12/exim/exim4.conf.template b/install/debian/12/exim/exim4.conf.template
index 27fca98ac..81746a7a4 100644
--- a/install/debian/12/exim/exim4.conf.template
+++ b/install/debian/12/exim/exim4.conf.template
@@ -353,7 +353,7 @@ remote_smtp:
   dkim_private_key = DKIM_PRIVATE_KEY
   dkim_canon = relaxed
   dkim_strict = 0
-  hosts_try_fastopen = !*.l.google.com
+  hosts_try_fastopen = 
   hosts_try_chunking = !93.188.3.0/24
 
 procmail: