diff --git a/services/static-webserver/client/source/class/osparc/auth/core/Utils.js b/services/static-webserver/client/source/class/osparc/auth/core/Utils.js
index 505d8bbdbf8..da013ab969f 100644
--- a/services/static-webserver/client/source/class/osparc/auth/core/Utils.js
+++ b/services/static-webserver/client/source/class/osparc/auth/core/Utils.js
@@ -51,6 +51,23 @@ qx.Class.define("osparc.auth.core.Utils", {
       return isValid;
     },
 
+    denylistEmailValidator: function(denylist) {
+      return emailValue => {
+        let errorMessage = "";
+        qx.util.Validate.checkEmail(emailValue, null, errorMessage);
+        // if the email check goes through, check it now against the denylist
+        if (denylist) {
+          denylist.forEach(reg => {
+            const re = new RegExp(reg);
+            if (re.test(emailValue)) {
+              errorMessage = qx.locale.Manager.tr("Invalid email address.<br>Please register using your university email address");
+              throw new qx.core.ValidationError("Validation Error", errorMessage);
+            }
+          })
+        }
+      };
+    },
+
     /** Finds parameters in the fragment
      *
      * Expected fragment format as https://osparc.io#page=reset-password;code=123546
diff --git a/services/static-webserver/client/source/class/osparc/auth/ui/RequestAccount.js b/services/static-webserver/client/source/class/osparc/auth/ui/RequestAccount.js
index ab9533d2311..22035158f76 100644
--- a/services/static-webserver/client/source/class/osparc/auth/ui/RequestAccount.js
+++ b/services/static-webserver/client/source/class/osparc/auth/ui/RequestAccount.js
@@ -15,16 +15,13 @@
 
 ************************************************************************ */
 
+/**
+ * @asset(osparc/denylist.json")
+ */
+
 qx.Class.define("osparc.auth.ui.RequestAccount", {
   extend: osparc.auth.core.BaseAuthPage,
 
-
-  /*
-  *****************************************************************************
-     MEMBERS
-  *****************************************************************************
-  */
-
   members: {
     __captchaField: null,
     __requestButton: null,
@@ -57,15 +54,26 @@ qx.Class.define("osparc.auth.ui.RequestAccount", {
         required: true
       });
       switch (osparc.product.Utils.getProductName()) {
-        case "s4l":
-        case "tis":
-        case "osparc":
-          this._form.add(email, this.tr("Email"), qx.util.Validate.email(), "email");
-          break;
-        case "tiplite":
         case "s4lacad":
         case "s4ldesktopacad":
-          this._form.add(email, this.tr("University Email"), qx.util.Validate.email(), "email");
+        case "tiplite": {
+          this._form.add(email, this.tr("University Email"), null, "email");
+          let validator = qx.util.Validate.email();
+          osparc.utils.Utils.fetchJSON("/resource/osparc/denylist.json")
+            .then(denylistData => {
+              if ("lite" in denylistData) {
+                const denylist = denylistData["lite"];
+                validator = osparc.auth.core.Utils.denylistEmailValidator(denylist);
+              }
+            })
+            .catch(console.error)
+            .finally(() => {
+              this._form.getValidationManager().add(email, validator);
+            });
+          break;
+        }
+        default:
+          this._form.add(email, this.tr("Email"), qx.util.Validate.email(), "email");
           break;
       }
 
diff --git a/services/static-webserver/client/source/class/osparc/navigation/NavigationBar.js b/services/static-webserver/client/source/class/osparc/navigation/NavigationBar.js
index 93f9af91ce9..4353cd497f0 100644
--- a/services/static-webserver/client/source/class/osparc/navigation/NavigationBar.js
+++ b/services/static-webserver/client/source/class/osparc/navigation/NavigationBar.js
@@ -236,6 +236,7 @@ qx.Class.define("osparc.navigation.NavigationBar", {
             marginRight: 30,
             ...this.self().BUTTON_OPTIONS,
           });
+          osparc.utils.Utils.setIdToWidget(control, "accessTIPBtn");
           control.addListener("execute", () => osparc.product.TIPTeaser.getInstance().open());
           this.getChildControl("right-items").add(control);
           break;
diff --git a/services/static-webserver/client/source/resource/osparc/denylist.json b/services/static-webserver/client/source/resource/osparc/denylist.json
new file mode 100644
index 00000000000..320ad0890b8
--- /dev/null
+++ b/services/static-webserver/client/source/resource/osparc/denylist.json
@@ -0,0 +1,181 @@
+{
+  "lite": [
+    "@*\\.ir$",
+    "@imanova\\.co\\.uk$",
+    "@centrum\\.sk$",
+    "@centrum\\.cz$",
+    "@*\\.medical\\.canon$",
+    "@gmail.com$",
+    "@yahoo.com$",
+    "@hotmail.com$",
+    "@hotmail\\.*$",
+    "@aol.com$",
+    "@hotmail.co.uk$",
+    "@hotmail.fr$",
+    "@msn.com$",
+    "@yahoo.fr$",
+    "@wanadoo.fr$",
+    "@orange.fr$",
+    "@comcast.net$",
+    "@yahoo.co.uk$",
+    "@yahoo.com.br$",
+    "@yahoo.co.in$",
+    "@live.com$",
+    "@rediffmail.com$",
+    "@free.fr$",
+    "@gmx.de$",
+    "@web.de$",
+    "@yandex.ru$",
+    "@ymail.com$",
+    "@libero.it$",
+    "@outlook.com$",
+    "@uol.com.br$",
+    "@bol.com.br$",
+    "@mail.ru$",
+    "@cox.net$",
+    "@hotmail.it$",
+    "@sbcglobal.net$",
+    "@sfr.fr$",
+    "@live.fr$",
+    "@verizon.net$",
+    "@live.co.uk$",
+    "@googlemail.com$",
+    "@yahoo.es$",
+    "@ig.com.br$",
+    "@live.nl$",
+    "@bigpond.com$",
+    "@terra.com.br$",
+    "@yahoo.it$",
+    "@neuf.fr$",
+    "@yahoo.de$",
+    "@alice.it$",
+    "@rocketmail.com$",
+    "@att.net$",
+    "@laposte.net$",
+    "@facebook.com$",
+    "@bellsouth.net$",
+    "@yahoo.in$",
+    "@hotmail.es$",
+    "@charter.net$",
+    "@yahoo.ca$",
+    "@yahoo.com.au$",
+    "@rambler.ru$",
+    "@hotmail.de$",
+    "@tiscali.it$",
+    "@shaw.ca$",
+    "@yahoo.co.jp$",
+    "@sky.com$",
+    "@earthlink.net$",
+    "@optonline.net$",
+    "@freenet.de$",
+    "@t-online.de$",
+    "@aliceadsl.fr$",
+    "@virgilio.it$",
+    "@home.nl$",
+    "@qq.com$",
+    "@telenet.be$",
+    "@me.com$",
+    "@yahoo.com.ar$",
+    "@tiscali.co.uk$",
+    "@yahoo.com.mx$",
+    "@voila.fr$",
+    "@gmx.net$",
+    "@mail.com$",
+    "@planet.nl$",
+    "@tin.it$",
+    "@live.it$",
+    "@ntlworld.com$",
+    "@arcor.de$",
+    "@yahoo.co.id$",
+    "@frontiernet.net$",
+    "@hetnet.nl$",
+    "@live.com.au$",
+    "@yahoo.com.sg$",
+    "@zonnet.nl$",
+    "@club-internet.fr$",
+    "@juno.com$",
+    "@optusnet.com.au$",
+    "@blueyonder.co.uk$",
+    "@bluewin.ch$",
+    "@skynet.be$",
+    "@sympatico.ca$",
+    "@windstream.net$",
+    "@mac.com$",
+    "@centurytel.net$",
+    "@chello.nl$",
+    "@live.ca$",
+    "@aim.com$",
+    "@bigpond.net.au$",
+    "@gmail.comgmx.com$",
+    "@google.com$",
+    "@email.com$",
+    "@fastmail.fm$",
+    "@games.com$",
+    "@hush.com$",
+    "@hushmail.com$",
+    "@icloud.com$",
+    "@iname.com$",
+    "@inbox.com$",
+    "@lavabit.com$",
+    "@love.com$",
+    "@pobox.com$",
+    "@protonmail.com$",
+    "@safe-mail.net$",
+    "@wow.com$",
+    "@ygm.com$",
+    "@zoho.com$",
+    "@yandex.com$",
+    "@btinternet.com$",
+    "@virginmedia.com$",
+    "@freeserve.co.uk$",
+    "@o2.co.uk$",
+    "@orange.net$",
+    "@talktalk.co.uk$",
+    "@virgin.net$",
+    "@wanadoo.co.uk$",
+    "@bt.com$",
+    "@sina.com$",
+    "@sina.cn$",
+    "@naver.com$",
+    "@hanmail.net$",
+    "@daum.net$",
+    "@nate.com$",
+    "@yahoo.co.kr$",
+    "@yahoo.com.ph$",
+    "@163.com$",
+    "@126.com$",
+    "@aliyun.com$",
+    "@foxmail.com$",
+    "@gmx.frsfr.fr$",
+    "@live.de$",
+    "@online.de$",
+    "@web.deyahoo.de$",
+    "@aol.it$",
+    "@email.it$",
+    "@poste.it$",
+    "@teletu.it$",
+    "@ya.ru$",
+    "@list.ru$",
+    "@hotmail.be$",
+    "@live.be$",
+    "@voo.be$",
+    "@tvcablenet.be$",
+    "@hotmail.com.ar$",
+    "@live.com.ar$",
+    "@live.cn$",
+    "@fibertel.com.ar$",
+    "@speedy.com.ar$",
+    "@arnet.com.ar$",
+    "@live.com.mx$",
+    "@hotmail.com.mx$",
+    "@prodigy.net.mx$",
+    "@hotmail.com.br$",
+    "@outlook.com.br$",
+    "@itelefonica.com.br$",
+    "@r7.com$",
+    "@zipmail.com.br$",
+    "@globo.com$",
+    "@globomail.com$",
+    "@oi.com.br$"
+  ]
+}