diff --git a/app/logical/email_validator.rb b/app/logical/email_validator.rb
index 780ebe63c..ca7292493 100644
--- a/app/logical/email_validator.rb
+++ b/app/logical/email_validator.rb
@@ -22,30 +22,70 @@ module EmailValidator
   # Sites that have multiple domains mapping to the same logical email address.
   CANONICAL_DOMAINS = {
     "googlemail.com" => "gmail.com",
+    "hotmail.com.ar" => "outlook.com",
+    "hotmail.com.br" => "outlook.com",
+    "hotmail.com.hk" => "outlook.com",
+    "hotmail.com.tw" => "outlook.com",
     "hotmail.co.uk" => "outlook.com",
     "hotmail.co.jp" => "outlook.com",
     "hotmail.co.th" => "outlook.com",
     "hotmail.com" => "outlook.com",
+    "hotmail.be" => "outlook.com",
     "hotmail.ca" => "outlook.com",
     "hotmail.de" => "outlook.com",
+    "hotmail.dk" => "outlook.com",
     "hotmail.es" => "outlook.com",
+    "hotmail.fi" => "outlook.com",
     "hotmail.fr" => "outlook.com",
+    "hotmail.hu" => "outlook.com",
     "hotmail.it" => "outlook.com",
+    "hotmail.my" => "outlook.com",
+    "hotmail.nl" => "outlook.com",
+    "hotmail.no" => "outlook.com",
+    "hotmail.se" => "outlook.com",
     "live.com.au" => "outlook.com",
     "live.com.ar" => "outlook.com",
     "live.com.mx" => "outlook.com",
+    "live.com.pt" => "outlook.com",
     "live.co.uk" => "outlook.com",
     "live.com" => "outlook.com",
+    "live.at" => "outlook.com",
     "live.ca" => "outlook.com",
     "live.cl" => "outlook.com",
     "live.cn" => "outlook.com",
     "live.de" => "outlook.com",
+    "live.dk" => "outlook.com",
     "live.fr" => "outlook.com",
     "live.it" => "outlook.com",
     "live.jp" => "outlook.com",
     "live.nl" => "outlook.com",
     "live.se" => "outlook.com",
     "msn.com" => "outlook.com",
+    "outlook.com.ar" => "outlook.com",
+    "outlook.com.au" => "outlook.com",
+    "outlook.com.br" => "outlook.com",
+    "outlook.co.id" => "outlook.com",
+    "outlook.co.uk" => "outlook.com",
+    "outlook.co.jp" => "outlook.com",
+    "outlook.co.nz" => "outlook.com",
+    "outlook.co.th" => "outlook.com",
+    "outlook.at" => "outlook.com",
+    "outlook.be" => "outlook.com",
+    "outlook.ca" => "outlook.com",
+    "outlook.cl" => "outlook.com",
+    "outlook.cn" => "outlook.com",
+    "outlook.de" => "outlook.com",
+    "outlook.dk" => "outlook.com",
+    "outlook.fr" => "outlook.com",
+    "outlook.ie" => "outlook.com",
+    "outlook.it" => "outlook.com",
+    "outlook.kr" => "outlook.com",
+    "outlook.jp" => "outlook.com",
+    "outlook.nl" => "outlook.com",
+    "outlook.pt" => "outlook.com",
+    "outlook.ru" => "outlook.com",
+    "outlook.sa" => "outlook.com",
+    "outlook.se" => "outlook.com",
     "yahoo.com.au" => "yahoo.com",
     "yahoo.com.ar" => "yahoo.com",
     "yahoo.com.br" => "yahoo.com",
@@ -59,7 +99,9 @@ module EmailValidator
     "yahoo.co.id" => "yahoo.com",
     "yahoo.co.kr" => "yahoo.com",
     "yahoo.co.jp" => "yahoo.com",
+    "yahoo.co.nz" => "yahoo.com",
     "yahoo.co.uk" => "yahoo.com",
+    "yahoo.ne.jp" => "yahoo.com",
     "yahoo.ca" => "yahoo.com",
     "yahoo.cn" => "yahoo.com",
     "yahoo.de" => "yahoo.com",
@@ -75,6 +117,21 @@ module EmailValidator
     "gmx.de" => "gmx.net",
     "gmx.fr" => "gmx.net",
     "gmx.us" => "gmx.net",
+    "pm.me" => "protonmail.com",
+    "protonmail.ch" => "protonmail.com",
+    "tuta.io"     => "tutanota.com",
+    "email.com"   => "mail.com",
+    "me.com"      => "icloud.com",
+    "ya.ru"       => "yandex.ru",
+    "yandex.com"  => "yandex.ru",
+    "yandex.by"   => "yandex.ru",
+    "yandex.ua"   => "yandex.ru",
+    "yandex.kz"   => "yandex.ru",
+    "inbox.ru"    => "mail.ru",
+    "bk.ru"       => "mail.ru",
+    "list.ru"     => "mail.ru",
+    "internet.ru" => "mail.ru",
+    "hanmail.net" => "daum.net",
   }
 
   # Returns true if it's okay to connect to port 25. Disabled outside of