diff --git a/about.pl b/about.pl
index 56037c8aa5..2396ad13f4 100755
--- a/about.pl
+++ b/about.pl
@@ -44,6 +44,7 @@ use Koha;
 use Koha::DateUtils qw(dt_from_string output_pref);
 use Koha::Acquisition::Currencies;
 use Koha::BiblioFrameworks;
+use Koha::Email;
 use Koha::Patron::Categories;
 use Koha::Patrons;
 use Koha::Caches;
@@ -196,6 +197,8 @@ my $warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist = ( $AnonymousPatr
 
 my $warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist = ( not $anonymous_patron and Koha::Patrons->search({ privacy => 2 })->count );
 
+my $warnPrefKohaAdminEmailAddress = not Email::Valid->address(C4::Context->preference('KohaAdminEmailAddress'));
+
 my $errZebraConnection = C4::Context->Zconn("biblioserver",0)->errcode();
 
 my $warnIsRootUser   = (! $loggedinuser);
@@ -571,6 +574,7 @@ $template->param(
     warnPrefAnonymousPatronAnonSuggestions    => $warnPrefAnonymousPatronAnonSuggestions,
     warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist     => $warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist,
     warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist => $warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist,
+    warnPrefKohaAdminEmailAddress => $warnPrefKohaAdminEmailAddress,
     errZebraConnection => $errZebraConnection,
     warnIsRootUser => $warnIsRootUser,
     warnNoActiveCurrency => $warnNoActiveCurrency,
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
index cc4ef76dec..b115967186 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/about.tt
@@ -184,7 +184,7 @@
         </div>
 
         <div id="sysinfo">
-    [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnNoActiveCurrency || warnIsRootUser || xml_config_warnings.size || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || has_ai_issues || oauth2_missing_deps || bad_yaml_prefs || warnRelationships || log4perl_errors || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size %]
+    [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnPrefKohaAdminEmailAddress || warnNoActiveCurrency || warnIsRootUser || xml_config_warnings.size || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || has_ai_issues || oauth2_missing_deps || bad_yaml_prefs || warnRelationships || log4perl_errors || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size %]
         [% IF (warnIsRootUser) %]
             <h2>Warning regarding current user</h2>
             <p>You are logged in as the database administrative user. This is not recommended because some parts of Koha will not function as expected when using this account.</p>
@@ -259,7 +259,7 @@
             [% END %]
         [% END %]
 
-        [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnNoActiveCurrency || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || oauth2_missing_deps || bad_yaml_prefs || warnIssuingRules || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size %]
+        [% IF warnPrefBiblioAddsAuthorities || warnPrefEasyAnalyticalRecords || warnPrefAnonymousPatronOPACPrivacy || warnPrefAnonymousPatronAnonSuggestions || warnPrefAnonymousPatronOPACPrivacy_PatronDoesNotExist || warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist || warnPrefKohaAdminEmailAddress || warnNoActiveCurrency || AutoSelfCheckPatronDoesNotHaveSelfCheckPerm || AutoSelfCheckPatronHasTooManyPerm || warnStatisticsFieldsError || warnNoTemplateCaching || warnILLConfiguration || oauth2_missing_deps || bad_yaml_prefs || warnIssuingRules || config_bcrypt_settings_no_set || warnHiddenBiblionumbers.size %]
             <h2>Warnings regarding the system configuration</h2>
             <table>
                 <caption>Preferences and parameters</caption>
@@ -281,6 +281,9 @@
                 [% IF warnPrefAnonymousPatronAnonSuggestions_PatronDoesNotExist %]
                     <tr><th scope="row"><strong>Warning</strong> </th><td>System preference 'AnonSuggestions' set, but AnonymousPatron preference is not set correctly. Set it to a valid borrower number if you want that this feature works correctly.</td></tr>
                 [% END %]
+                [% IF warnPrefKohaAdminEmailAddress %]
+                    <tr><th scope="row"><strong>Warning</strong> </th><td>System preference 'KohaAdminEmailAddress' does not contain a valid email address. Emails will not be sent.</td></tr>
+                [% END %]
                 [% IF warnNoActiveCurrency %]
                     <tr><th scope="row"><strong>Warning</strong> </th><td>No active currency is defined. Please go to <a href="/cgi-bin/koha/admin/currency.pl">Administration &gt; Currencies and exchange rates</a> and mark one currency as active.</td></tr>
                 [% END %]