diff --git a/Cargo.toml b/Cargo.toml
index d49e46d..e1d9200 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,3 +13,4 @@ gloo-console = "0.3.0"
 yewdux = "0.10.0"
 serde = "1.0.198"
 serde_json = "1.0.116"
+regex = "1.10.4"
diff --git a/dist/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c_bg.wasm b/dist/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c_bg.wasm
deleted file mode 100644
index 26f4115..0000000
Binary files a/dist/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c_bg.wasm and /dev/null differ
diff --git a/dist/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c.js b/dist/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0.js
similarity index 97%
rename from dist/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c.js
rename to dist/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0.js
index 3e7f377..9544ab2 100644
--- a/dist/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c.js
+++ b/dist/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0.js
@@ -571,6 +571,16 @@ function __wbg_get_imports() {
         getInt32Memory0()[arg0 / 4 + 1] = len1;
         getInt32Memory0()[arg0 / 4 + 0] = ptr1;
     };
+    imports.wbg.__wbg_className_5d3a8bc179d8555f = function(arg0, arg1) {
+        const ret = getObject(arg1).className;
+        const ptr1 = passStringToWasm0(ret, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc);
+        const len1 = WASM_VECTOR_LEN;
+        getInt32Memory0()[arg0 / 4 + 1] = len1;
+        getInt32Memory0()[arg0 / 4 + 0] = ptr1;
+    };
+    imports.wbg.__wbg_setclassName_9fee267eae0d8ddc = function(arg0, arg1, arg2) {
+        getObject(arg0).className = getStringFromWasm0(arg1, arg2);
+    };
     imports.wbg.__wbg_setinnerHTML_26d69b59e1af99c7 = function(arg0, arg1, arg2) {
         getObject(arg0).innerHTML = getStringFromWasm0(arg1, arg2);
     };
@@ -936,16 +946,16 @@ function __wbg_get_imports() {
         const ret = wasm.memory;
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper6624 = function(arg0, arg1, arg2) {
-        const ret = makeClosure(arg0, arg1, 740, __wbg_adapter_40);
+    imports.wbg.__wbindgen_closure_wrapper14859 = function(arg0, arg1, arg2) {
+        const ret = makeClosure(arg0, arg1, 1516, __wbg_adapter_40);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper8507 = function(arg0, arg1, arg2) {
-        const ret = makeMutClosure(arg0, arg1, 868, __wbg_adapter_43);
+    imports.wbg.__wbindgen_closure_wrapper16840 = function(arg0, arg1, arg2) {
+        const ret = makeMutClosure(arg0, arg1, 1650, __wbg_adapter_43);
         return addHeapObject(ret);
     };
-    imports.wbg.__wbindgen_closure_wrapper8704 = function(arg0, arg1, arg2) {
-        const ret = makeMutClosure(arg0, arg1, 881, __wbg_adapter_46);
+    imports.wbg.__wbindgen_closure_wrapper17039 = function(arg0, arg1, arg2) {
+        const ret = makeMutClosure(arg0, arg1, 1663, __wbg_adapter_46);
         return addHeapObject(ret);
     };
 
@@ -988,7 +998,7 @@ async function __wbg_init(input) {
     if (wasm !== undefined) return wasm;
 
     if (typeof input === 'undefined') {
-        input = new URL('digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c_bg.wasm', import.meta.url);
+        input = new URL('digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0_bg.wasm', import.meta.url);
     }
     const imports = __wbg_get_imports();
 
diff --git a/dist/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0_bg.wasm b/dist/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0_bg.wasm
new file mode 100644
index 0000000..94a4858
Binary files /dev/null and b/dist/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0_bg.wasm differ
diff --git a/dist/index.html b/dist/index.html
index c4e2ecf..243abbc 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -2,20 +2,20 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>Digitaler Frieden</title>
-    <link rel="stylesheet" href="/styles-25689c825de51fae.css" integrity="sha384-idDVKeYHrC3A1H5zUTTAuwnknbi8drZxZR0VadSO3YLJXXibjztmCcFlXMYb8nj2">
+    <link rel="stylesheet" href="/styles-2f497d8ef19829ea.css" integrity="sha384-xjbFA5YII5ii4ycMp1VG9QYAac57eQoe_5ODSF-7wl5-9HE4Y1gF6bNlX9x-yPi6">
     <link rel="icon" href="/favicon-928ba63f33046eed.ico" integrity="sha384-Neq57jnFrTfqAN1JvKAVVVcH1EW3__cZHmK2NRXRlNrxAZR6ErTvXzbOLSyHzkA4">
      
     <link rel="manifest" href="public/manifest.json">
   
-<link rel="preload" href="/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c_bg.wasm" as="fetch" type="application/wasm" crossorigin="anonymous" integrity="sha384-I7ueuj-4SfKQtufkWZfFev3szDt3P3-C7jCalOE4fdoJHlZQm8CJIOJRZFCWtxlM">
-<link rel="modulepreload" href="/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c.js" crossorigin="anonymous" integrity="sha384-WA_9K_FUqzGPcLlhTBcSsHpY4reSZs6Ea87HOPH1hj0hTYxLP-xpwqE9AV2SsgMO"></head>
+<link rel="preload" href="/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0_bg.wasm" as="fetch" type="application/wasm" crossorigin="anonymous" integrity="sha384-ZvSi8d_mmdFY-yFrqlDwkphYX0gpxlki3N_kMk6i5tN7JYeGqtOLcScPQLe--eTQ">
+<link rel="modulepreload" href="/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0.js" crossorigin="anonymous" integrity="sha384-wp6sqTySFAnU_e-tFtq2_-hxFMNiD46wtXFfn9-N_Sucj0pEppfQsGk2x10MkLQC"></head>
   <body class="bg-black text-white">
   
 
 
 <script type="module">
-import init, * as bindings from '/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c.js';
-init('/digitaler-frieden-23bb9eba3fb849f290b6e7e45997c57afdeccc3b773f7f82ee309a94e1387dda091e56509bc08920e251645096b7194c_bg.wasm');
+import init, * as bindings from '/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0.js';
+init('/digitaler-frieden-66f4a2f1dfe699d158fb216baa50f09298585f4829c65922dcdfe4324ea2e6d37b258786aad38b71270f40b7bef9e4d0_bg.wasm');
 window.wasmBindings = bindings;
 
 </script><script>"use strict";
diff --git a/dist/public/styles.css b/dist/public/styles.css
index 3d8d06e..77ea4d4 100644
--- a/dist/public/styles.css
+++ b/dist/public/styles.css
@@ -891,6 +891,11 @@ video {
   animation: logo-fadein-right 1s ;
 }
 
+.validation-error {
+  border-style: solid;
+  border-color: rgba(255, 82, 82,1.0);
+}
+
 @keyframes logo-fadein-right {
   0% {
     transform: translateX(-200%);
@@ -1059,6 +1064,10 @@ video {
   border-color: rgba(51,217,178,1.0);
 }
 
+.border-error {
+  border-color: rgba(255, 82, 82,1.0) !important;
+}
+
 .accent-primary {
   accent-color: rgba(51, 217, 178,1.0);
 }
diff --git a/dist/styles-25689c825de51fae.css b/dist/styles-2f497d8ef19829ea.css
similarity index 99%
rename from dist/styles-25689c825de51fae.css
rename to dist/styles-2f497d8ef19829ea.css
index 3d8d06e..77ea4d4 100644
--- a/dist/styles-25689c825de51fae.css
+++ b/dist/styles-2f497d8ef19829ea.css
@@ -891,6 +891,11 @@ video {
   animation: logo-fadein-right 1s ;
 }
 
+.validation-error {
+  border-style: solid;
+  border-color: rgba(255, 82, 82,1.0);
+}
+
 @keyframes logo-fadein-right {
   0% {
     transform: translateX(-200%);
@@ -1059,6 +1064,10 @@ video {
   border-color: rgba(51,217,178,1.0);
 }
 
+.border-error {
+  border-color: rgba(255, 82, 82,1.0) !important;
+}
+
 .accent-primary {
   accent-color: rgba(51, 217, 178,1.0);
 }
diff --git a/input.css b/input.css
index 0b75513..c0e98b4 100644
--- a/input.css
+++ b/input.css
@@ -11,6 +11,10 @@
   animation: logo-fadein-right 1s ;
 }
 
+.validation-error {
+  @apply border-solid border-error;
+}
+
 @keyframes logo-fadein-right {
   0% {
     transform: translateX(-200%);
@@ -157,6 +161,9 @@ opacity:1}
   border-color: rgba(51,217,178,1.0);
 }
 
+.border-error {
+  border-color: rgba(255, 82, 82,1.0) !important;
+}
 .accent-primary {
   accent-color: rgba(51, 217, 178,1.0);
 }
diff --git a/public/styles.css b/public/styles.css
index 3d8d06e..77ea4d4 100644
--- a/public/styles.css
+++ b/public/styles.css
@@ -891,6 +891,11 @@ video {
   animation: logo-fadein-right 1s ;
 }
 
+.validation-error {
+  border-style: solid;
+  border-color: rgba(255, 82, 82,1.0);
+}
+
 @keyframes logo-fadein-right {
   0% {
     transform: translateX(-200%);
@@ -1059,6 +1064,10 @@ video {
   border-color: rgba(51,217,178,1.0);
 }
 
+.border-error {
+  border-color: rgba(255, 82, 82,1.0) !important;
+}
+
 .accent-primary {
   accent-color: rgba(51, 217, 178,1.0);
 }
diff --git a/src/lib.rs b/src/lib.rs
index 22f4c99..93d6dfc 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,4 @@
 pub mod pages;
 pub mod router;
 pub mod storage;
+mod validation;
diff --git a/src/pages/clues.rs b/src/pages/clues.rs
index bafd7d4..c0fb019 100644
--- a/src/pages/clues.rs
+++ b/src/pages/clues.rs
@@ -2,7 +2,7 @@ use web_sys::{KeyboardEvent, MouseEvent};
 use yew::{classes, function_component, html, Html};
 use yew_router::components::Link;
 
-use crate::router::Route;
+use crate::{router::Route, validation};
 
 #[function_component]
 pub fn Clues() -> Html {
@@ -16,11 +16,24 @@ pub fn Clues() -> Html {
             if let Some(input) = mail.cast::<web_sys::HtmlInputElement>() {
                 let mut m = mails_callback.to_vec();
                 let mail = input.value();
-                if !mail.is_empty() && !m.contains(&mail) {
-                    m.push(mail);
-                    input.set_value("");
-                }
-                mails_callback.set(m);
+                let mut classes = input.class_name();
+                match validation::validate_email(&mail) {
+                    true => {
+                        if !m.contains(&mail) {
+                            m.push(mail);
+                            input.set_value("");
+                        }
+                        input.set_class_name(&classes.replace("validation-error", ""));
+                        mails_callback.set(m);
+                    }
+                    false => match classes.find("validation-error") {
+                        Some(_) => {}
+                        None => {
+                            classes.push_str(" validation-error");
+                            input.set_class_name(&classes);
+                        }
+                    },
+                };
             };
         })
     };
@@ -52,11 +65,27 @@ pub fn Clues() -> Html {
             if let Some(input) = phone.cast::<web_sys::HtmlInputElement>() {
                 let mut m = phones_callback.to_vec();
                 let phone = input.value();
-                if !phone.is_empty() && !m.contains(&phone) {
-                    m.push(phone);
-                    input.set_value("");
+                let mut classes = input.class_name();
+                match validation::validate_phone_number(&phone) {
+                    true => {
+                        if !m.contains(&phone) {
+                            m.push(phone);
+                            input.set_value("");
+                        }
+                        input.set_class_name(&classes.replace("validation-error", ""));
+                        phones_callback.set(m);
+                    }
+                    false => {
+                        match classes.find("validation-error") {
+                            Some(_) => {}
+                            None => {
+                                classes.push_str(" validation-error");
+                                input.set_class_name(&classes);
+                            }
+                        }
+                        // classes.retain("validation_error");
+                    }
                 }
-                phones_callback.set(m);
             };
         })
     };
@@ -142,6 +171,7 @@ pub fn Clues() -> Html {
                             <div class="flex justify-center items-center space-x-4 w-full">
                                 <input
                                     onkeypress={on_mail_add_press}
+                                    type="email"
                                     id="email"
                                     ref={mail}
                                     class={classes!(
diff --git a/src/validation.rs b/src/validation.rs
new file mode 100644
index 0000000..b60aa11
--- /dev/null
+++ b/src/validation.rs
@@ -0,0 +1,15 @@
+use regex::Regex;
+
+pub fn validate_email(email: &str) -> bool {
+    // Regular expression pattern for email validation
+    let email_regex = Regex::new(r"^[\w\.-]+@[\w\.-]+\.\w+$").unwrap();
+
+    email_regex.is_match(email)
+}
+
+pub fn validate_phone_number(phone_number: &str) -> bool {
+    // Regular expression pattern for phone number validation (all countries)
+    let phone_regex = Regex::new(r"^[\+0][\-.,\(\)\d\s]*$").unwrap();
+
+    phone_regex.is_match(phone_number)
+}