diff --git a/lib/Froxlor/Api/Commands/EmailAccounts.php b/lib/Froxlor/Api/Commands/EmailAccounts.php
index 0a06f524..d9396ee2 100644
--- a/lib/Froxlor/Api/Commands/EmailAccounts.php
+++ b/lib/Froxlor/Api/Commands/EmailAccounts.php
@@ -100,8 +100,8 @@ class EmailAccounts extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Reso
 			// alternative email address to send info to
 			if (Settings::Get('panel.sendalternativemail') == 1) {
 				$alternative_email = $idna_convert->encode(\Froxlor\Validate\Validate::validate($alternative_email, 'alternative_email', '', '', array(), true));
-				if (! \Froxlor\Validate\Validate::validateEmail($alternative_email)) {
-					\Froxlor\UI\Response::standard_error('emailiswrong', $alternative_email, true);
+				if (!empty($alternative_email) && ! \Froxlor\Validate\Validate::validateEmail($alternative_email)) {
+					\Froxlor\UI\Response::standard_error('alternativeemailiswrong', $alternative_email, true);
 				}
 			} else {
 				$alternative_email = '';
@@ -236,7 +236,7 @@ class EmailAccounts extends \Froxlor\Api\ApiCommand implements \Froxlor\Api\Reso
 				$this->mailer()->clearAddresses();
 
 				// customer wants to send the e-mail to an alternative email address too
-				if (Settings::Get('panel.sendalternativemail') == 1) {
+				if (Settings::Get('panel.sendalternativemail') == 1 && !empty($alternative_email)) {
 					// get template for mail subject
 					$mail_subject = $this->getMailTemplate($customer, 'mails', 'pop_success_alternative_subject', $replace_arr, $this->lng['mails']['pop_success_alternative']['subject']);
 					// get template for mail body
diff --git a/lng/english.lng.php b/lng/english.lng.php
index 30e71497..f6ccd8dd 100644
--- a/lng/english.lng.php
+++ b/lng/english.lng.php
@@ -204,6 +204,7 @@ $lng['error']['mydomain'] = '\'Domain\'';
 $lng['error']['mydocumentroot'] = '\'Documentroot\'';
 $lng['error']['loginnameexists'] = 'Loginname %s already exists';
 $lng['error']['emailiswrong'] = 'Email-address %s contains invalid characters or is incomplete';
+$lng['error']['alternativeemailiswrong'] = 'The given alternative email address %s to send the credentials to seems to be invalid';
 $lng['error']['loginnameiswrong'] = 'Loginname "%s" contains illegal characters.';
 $lng['error']['loginnameiswrong2'] = 'Loginname contains too many characters. Only %s characters are allowed.';
 $lng['error']['userpathcombinationdupe'] = 'Combination of username and path already exists';
diff --git a/lng/german.lng.php b/lng/german.lng.php
index df3f5d2f..2e55bbb1 100644
--- a/lng/german.lng.php
+++ b/lng/german.lng.php
@@ -202,6 +202,7 @@ $lng['error']['mydomain'] = '\'Domain\'';
 $lng['error']['mydocumentroot'] = '\'Documentroot\'';
 $lng['error']['loginnameexists'] = 'Der Login-Name "%s" existiert bereits.';
 $lng['error']['emailiswrong'] = 'Die E-Mail-Adresse "%s" enthält ungültige Zeichen oder ist nicht vollständig.';
+$lng['error']['alternativeemailiswrong'] = 'Die angegebene alternative E-Mail Adresse "%s", an welche die Zugangsdaten geschickt werden soll, scheint ungültig zu sein.';
 $lng['error']['loginnameiswrong'] = 'Der Login-Name "%s" enthält ungültige Zeichen.';
 $lng['error']['loginnameiswrong2'] = 'Der Login-Name enthält zu viele Zeichen, es sind maximal %s Zeichen erlaubt.';
 $lng['error']['userpathcombinationdupe'] = 'Die Kombination aus Benutzername und Pfad existiert bereits.';