diff --git a/assets/js/src/common/sender_email_address_warning.jsx b/assets/js/src/common/sender_email_address_warning.jsx
index 2cf69e1ed2..54f5d1921f 100644
--- a/assets/js/src/common/sender_email_address_warning.jsx
+++ b/assets/js/src/common/sender_email_address_warning.jsx
@@ -42,7 +42,7 @@ OldInstallationWarning.propTypes = {
   emailAddress: PropTypes.string.isRequired,
 };
 
-const SenderEmailAddressWarning = ({ emailAddress, mssActive, pluginInstalledAt }) => {
+const SenderEmailAddressWarning = ({ emailAddress, mssActive }) => {
   if (mssActive) return null
   const emailAddressDomain = emailAddress.split('@').pop().toLowerCase();
   if (window.mailpoet_free_domains.indexOf(emailAddressDomain) > -1) {
@@ -54,7 +54,6 @@ const SenderEmailAddressWarning = ({ emailAddress, mssActive, pluginInstalledAt
 SenderEmailAddressWarning.propTypes = {
   emailAddress: PropTypes.string.isRequired,
   mssActive: PropTypes.bool.isRequired,
-  pluginInstalledAt: PropTypes.string.isRequired,
 };
 
 export default SenderEmailAddressWarning;
diff --git a/assets/js/src/newsletters/send/sender_address_field.jsx b/assets/js/src/newsletters/send/sender_address_field.jsx
index 9737942bca..1dbf0ad44b 100644
--- a/assets/js/src/newsletters/send/sender_address_field.jsx
+++ b/assets/js/src/newsletters/send/sender_address_field.jsx
@@ -28,7 +28,6 @@ class SenderField extends React.Component {
           <SenderEmailAddressWarning
             emailAddress={this.state.emailAddress}
             mssActive={window.mailpoet_mss_active}
-            pluginInstalledAt={window.mailpoet_installed_at}
           />
         </div>
       </React.Fragment>
diff --git a/assets/js/src/settings/default_sender.jsx b/assets/js/src/settings/default_sender.jsx
index 0731feacf1..6b2ab99b04 100644
--- a/assets/js/src/settings/default_sender.jsx
+++ b/assets/js/src/settings/default_sender.jsx
@@ -50,7 +50,6 @@ class DefaultSender extends React.Component {
           <SenderEmailAddressWarning
             emailAddress={this.state.senderAddress}
             mssActive={this.props.mssActive}
-            pluginInstalledAt={this.props.pluginInstalledAt}
           />
         </div>
         <p>
@@ -83,7 +82,6 @@ DefaultSender.propTypes = {
   replyToAddress: PropTypes.string.isRequired,
   replyToName: PropTypes.string.isRequired,
   mssActive: PropTypes.bool.isRequired,
-  pluginInstalledAt: PropTypes.string.isRequired,
 };
 
 export default DefaultSender;
diff --git a/assets/js/src/settings/settings.jsx b/assets/js/src/settings/settings.jsx
index d711e73ff9..738b7e50c1 100644
--- a/assets/js/src/settings/settings.jsx
+++ b/assets/js/src/settings/settings.jsx
@@ -12,7 +12,6 @@ if (settingsSenderContainer) {
       senderName: window.mailpoet_settings_sender_name,
       replyToAddress: window.mailpoet_settings_reply_to_address,
       replyToName: window.mailpoet_settings_reply_to_name,
-      pluginInstalledAt: window.mailpoet_installed_at,
       mssActive: window.mailpoet_mss_active,
     }),
     settingsSenderContainer
@@ -26,7 +25,6 @@ if (settingsSignupConfirmationSenderContainer) {
     React.createElement(SignupConfirmationSender, {
       senderAddress: window.mailpoet_settings_sender_adddress,
       senderName: window.mailpoet_settings_sender_name,
-      pluginInstalledAt: window.mailpoet_installed_at,
       mssActive: window.mailpoet_mss_active,
     }),
     settingsSignupConfirmationSenderContainer
diff --git a/assets/js/src/settings/signup_confirmation_sender.jsx b/assets/js/src/settings/signup_confirmation_sender.jsx
index c10fa03d5b..c684de2ca6 100644
--- a/assets/js/src/settings/signup_confirmation_sender.jsx
+++ b/assets/js/src/settings/signup_confirmation_sender.jsx
@@ -52,7 +52,6 @@ class SignupConfirmationSender extends React.Component {
             <SenderEmailAddressWarning
               emailAddress={this.state.senderAddress}
               mssActive={this.props.mssActive}
-              pluginInstalledAt={this.props.pluginInstalledAt}
             />
           </div>
         </td>
@@ -65,7 +64,6 @@ SignupConfirmationSender.propTypes = {
   senderAddress: PropTypes.string.isRequired,
   senderName: PropTypes.string.isRequired,
   mssActive: PropTypes.bool.isRequired,
-  pluginInstalledAt: PropTypes.string.isRequired,
 };
 
 export default SignupConfirmationSender;