diff --git a/cypress/e2e/Chat.Message.Notification.feature b/cypress/e2e/Chat.Message.Notification.feature
index c26e5e1e1..7bbbeca3f 100644
--- a/cypress/e2e/Chat.Message.Notification.feature
+++ b/cypress/e2e/Chat.Message.Notification.feature
@@ -16,6 +16,7 @@ Feature: Notifications for Chat Messages via E-Mail
       | Billy Block        | billy-block        | billy@example.org     | 4321     | u_bb |  0.0.4                           |
     And "Bob der Baumeister" mutes "Nathan Narrator"
     And "Bob der Baumeister" blocks "Billy Block"
+    And the mailserver inbox is empty
 
   Scenario: Receive Chat Notification Email only when Online
     When "Jenny Rostock" sends a chat message to "Bob der Baumeister"
diff --git a/cypress/support/step_definitions/email.js b/cypress/support/step_definitions/email.js
index 0beaab73b..a0e51e22a 100644
--- a/cypress/support/step_definitions/email.js
+++ b/cypress/support/step_definitions/email.js
@@ -2,6 +2,13 @@ import { defineStep } from '@badeball/cypress-cucumber-preprocessor'
 
 const emailClientList = '.email-list'
 
+
+defineStep('the mailserver inbox is empty', () => {
+  cy.request('DELETE', 'localhost:1080/email/all')
+    .its('status')
+    .should('equal', 200)
+})
+
 defineStep('{string} should receive no chat notification email', (recipientEmailAddress) => {
   const emailTitle = 'Neue Chat-Nachricht | New chat message'