diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/BookingEdit.vue b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/BookingEdit.vue
index 8ef86772..b2e5195f 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/BookingEdit.vue
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/BookingEdit.vue
@@ -420,8 +420,15 @@
             validateInput () {
                 let messages = [];
                 this.invalidParticipantData = {};
+                const emailPattern = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/
                 for (let participant of this.participantData) {
                     let participantId = participant.data.id;
+                    if (!emailPattern.test(participant.data.email)) {
+                        this.invalidParticipantData[participantId] = {
+                            invalid: 'E-Mail',
+                        };
+                        messages.push('Teilnehmer #'+participantId+': ungültige E-Mail-Adresse')
+                    }
                     if (!participant.data.nationality) {
                         this.invalidParticipantData[participantId] = {
                             invalid: 'Nationalität',
diff --git a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/components/ParticipantDataForm.vue b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/components/ParticipantDataForm.vue
index 61b4ea44..8f7dcc98 100644
--- a/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/components/ParticipantDataForm.vue
+++ b/public/typo3conf/ext/ep_theme/Resources/Private/Assets/js/myep/components/ParticipantDataForm.vue
@@ -14,7 +14,7 @@
       >
       <input class="border-zinc-400 focus:border-zinc-800 ring-0 focus:ring-0 mt-1 w-full"
              :class="{'cursor-not-allowed': !mutable }"
-             type="text" placeholder="E-Mail"
+             type="email" placeholder="E-Mail"
              v-model="participant.data.email" :disabled="!mutable"
              @change="$emit('updated', participant)"
       >