diff --git a/lib/submissions.rb b/lib/submissions.rb
index 2fc9d386..878281b0 100644
--- a/lib/submissions.rb
+++ b/lib/submissions.rb
@@ -110,6 +110,7 @@ module Submissions
     return email.downcase if email.to_s.include?('.om')
     return email.downcase if email.to_s.include?('.mm')
     return email.downcase if email.to_s.include?('.cm')
+    return email.downcase if email.to_s.include?('.et')
     return email.downcase unless email.to_s.include?('.')
 
     fixed_email = EmailTypo.call(email.delete_prefix('<'))