diff --git a/interface/web/mail/form/mail_mailinglist.tform.php b/interface/web/mail/form/mail_mailinglist.tform.php
index 295bd8d5710fc33c1736656500ef322eeee6186f..7834b005de880427ddf883e204c2b74d99b57aee 100644
--- a/interface/web/mail/form/mail_mailinglist.tform.php
+++ b/interface/web/mail/form/mail_mailinglist.tform.php
@@ -103,6 +103,10 @@ $form["tabs"]['mailinglist'] = array (
 					'errmsg'=> 'listname_error_empty'),
 				1 => array ( 'type' => 'UNIQUE',
 					'errmsg'=> 'listname_error_unique'),
+				2 => array (
+					'type'	=> 'REGEX',
+					'regex' => '/^[_a-z0-9][\w\.\-_\+@]{1,255}$/',
+					'errmsg'=> 'listname_error_regex'),
 			),
 			'filters'   => array(
 					0 => array( 'event' => 'SAVE',
diff --git a/interface/web/mail/lib/lang/ar_mail_mailinglist.lng b/interface/web/mail/lib/lang/ar_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..4b11277e1f240e04267b90287198950e7f28de50 100644
--- a/interface/web/mail/lib/lang/ar_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/ar_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
diff --git a/interface/web/mail/lib/lang/bg_mail_mailinglist.lng b/interface/web/mail/lib/lang/bg_mail_mailinglist.lng
index 74db3ed6f22d1626ab953d7325ac73c3d5faa28a..a2ccf282c7515c0eff891e42d8e5e8bc03d0cc8d 100644
--- a/interface/web/mail/lib/lang/bg_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/bg_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Достигнат лимит';
 $wb['domain_error_empty'] = 'Полето с домейн е празно.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Имейла се изполва';
 $wb['no_domain_perm'] = 'Ти нямаш права за този домейн.';
diff --git a/interface/web/mail/lib/lang/br_mail_mailinglist.lng b/interface/web/mail/lib/lang/br_mail_mailinglist.lng
index 035eb6456bfaf3e2cdde946d994895749adf405f..6a113f4e63d0663b8c0fefe9acc426c6846ca592 100644
--- a/interface/web/mail/lib/lang/br_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/br_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['mailinglist_txt'] = 'Lista de email';
 $wb['limit_mailmailinglist_txt'] = 'O limite foi alcançado.';
 $wb['domain_error_empty'] = 'O domínio está vazio.';
 $wb['listname_error_empty'] = 'O nome da lista está vazio.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'O domínio é inválido.';
 $wb['email_in_use_txt'] = 'O email já está em uso.';
 $wb['no_domain_perm'] = 'Você não tem permissão para este domínio.';
diff --git a/interface/web/mail/lib/lang/ca_mail_mailinglist.lng b/interface/web/mail/lib/lang/ca_mail_mailinglist.lng
index 919e7079e579bb97da3af9f10d2a9700baf25e92..fbdc5307a6afc6080c981825986aebcb04945c94 100644
--- a/interface/web/mail/lib/lang/ca_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/ca_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limite atteinte';
 $wb['domain_error_empty'] = 'Le domain est vide.';
 $wb['listname_error_empty'] = 'Le nom de la liste est vide.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Nom de domaine invalide.';
 $wb['email_in_use_txt'] = 'L\'email est en cours d\'utilisation';
 $wb['no_domain_perm'] = 'Vous n\'avez pas la permission pour ce domain.';
diff --git a/interface/web/mail/lib/lang/cz_mail_mailinglist.lng b/interface/web/mail/lib/lang/cz_mail_mailinglist.lng
index e553c95bdea6d47f38f44890c478b2e0e8337fe6..f67d11251bfadbda8a95e476ae5a5cfd22791049 100644
--- a/interface/web/mail/lib/lang/cz_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/cz_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Omezení limitu dosaženo';
 $wb['domain_error_empty'] = 'Doména je prázdná.';
 $wb['listname_error_empty'] = 'Název seznamu je prázdný.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Neplatný název domény.';
 $wb['email_in_use_txt'] = 'E-mail je již používán';
 $wb['no_domain_perm'] = 'Nemáte oprávnění pro tuto doménu.';
diff --git a/interface/web/mail/lib/lang/de_mail_mailinglist.lng b/interface/web/mail/lib/lang/de_mail_mailinglist.lng
index 1d143b690c4197d8cd370d638eecc5c4103259be..e09153f44b4d386cf600eb83623c5a5b5e2df126 100644
--- a/interface/web/mail/lib/lang/de_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/de_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['limit_mailmailinglist_txt'] = 'Limit erreicht';
 $wb['domain_error_empty'] = 'Domain ist leer.';
 $wb['listname_error_empty'] = 'Listenname ist leer.';
 $wb['domain_error_regex'] = 'Domain Name ist nicht gültig.';
+$wb['listname_error_regex'] = 'Der Listenname ist ungültig. Die Mindestlänge beträgt 2 Zeichen (erlaubt sind: [a-z 1-9 - _])';
 $wb['email_in_use_txt'] = 'E-Mail Adresse ist bereits in Benutzung';
 $wb['no_domain_perm'] = 'Sie haben keine Rechte für diese Domain.';
 $wb['password_strength_txt'] = 'Passwortkomplexität';
diff --git a/interface/web/mail/lib/lang/dk_mail_mailinglist.lng b/interface/web/mail/lib/lang/dk_mail_mailinglist.lng
index 0868d38e6ead51467bb6ca1f055e8e1d07793f71..4c69c44617cfc67e143186532fb2e0163f726a5d 100644
--- a/interface/web/mail/lib/lang/dk_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/dk_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['mailinglist_txt'] = 'Mailing list';
 $wb['limit_mailmailinglist_txt'] = 'Begrænsninger nået';
 $wb['domain_error_empty'] = 'Domæne er tom.';
 $wb['listname_error_empty'] = 'Listenavn er tom.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Ugyldigt domæne name.';
 $wb['email_in_use_txt'] = 'E-mail er i brug';
 $wb['no_domain_perm'] = 'Du har ikke tilladelse til dette domæne.';
diff --git a/interface/web/mail/lib/lang/el_mail_mailinglist.lng b/interface/web/mail/lib/lang/el_mail_mailinglist.lng
index 5f5e0ffc7b9daf54edaa8473af3fd4000cf67e17..ec7e96afba41293a48cf4b1f6cee739ceea04a01 100644
--- a/interface/web/mail/lib/lang/el_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/el_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Το όριο ξεπεράστηκε.';
 $wb['domain_error_empty'] = 'Το Domain είναι άδειο.';
 $wb['listname_error_empty'] = 'Η λίστα είναι άδεια.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Το όνομα domain δεν είναι έγκυρο/';
 $wb['email_in_use_txt'] = 'Το email χρησιμοποιείται ήδη.';
 $wb['no_domain_perm'] = 'Δεν έχετε δικαιώματα σε αυτό το domain.';
diff --git a/interface/web/mail/lib/lang/en_mail_mailinglist.lng b/interface/web/mail/lib/lang/en_mail_mailinglist.lng
index c21a6a8cbcd3197052b5a5045ab63e188c0303af..47be58d1dbad615b0a6288a34729aeb960fe150c 100644
--- a/interface/web/mail/lib/lang/en_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/en_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['mailinglist_txt'] = 'Mailing list';
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
@@ -19,4 +20,4 @@ $wb['password_mismatch_txt'] = 'The passwords do not match.';
 $wb['password_match_txt'] = 'The passwords do match.';
 $wb['listname_error_unique'] = 'There is already a mailinglist with name on the server. Please choose a different listname.';
 $wb['email_error_isemail'] = 'Email address is invalid.';
-?>
\ No newline at end of file
+?>
diff --git a/interface/web/mail/lib/lang/es_mail_mailinglist.lng b/interface/web/mail/lib/lang/es_mail_mailinglist.lng
index 5a41780dfaa597f845300e374b36f8e2f025c81b..9bdb29fccde206c89d12d78bd2357516cfd248dd 100644
--- a/interface/web/mail/lib/lang/es_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/es_mail_mailinglist.lng
@@ -9,6 +9,7 @@ $wb['email_txt'] = 'Correo';
 $wb['generate_password_txt'] = 'Generar contraseña';
 $wb['limit_mailmailinglist_txt'] = 'Límite alcanzado';
 $wb['listname_error_empty'] = 'Nombre de la lista vacío.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['listname_error_unique'] = 'Ya existe en el servidor un lista de correos con ese nombre. Por favor elija otro.';
 $wb['listname_txt'] = 'Nombre de lista';
 $wb['mailinglist_txt'] = 'Lista de correo';
diff --git a/interface/web/mail/lib/lang/fi_mail_mailinglist.lng b/interface/web/mail/lib/lang/fi_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..4b11277e1f240e04267b90287198950e7f28de50 100644
--- a/interface/web/mail/lib/lang/fi_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/fi_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
diff --git a/interface/web/mail/lib/lang/fr_mail_mailinglist.lng b/interface/web/mail/lib/lang/fr_mail_mailinglist.lng
index 107b39817f9c456ac861d3a46a0089d25b572c82..69f824a75f367f2ee9945a73f2a37531a85e7ef7 100644
--- a/interface/web/mail/lib/lang/fr_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/fr_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limite atteinte';
 $wb['domain_error_empty'] = 'Le domain est vide.';
 $wb['listname_error_empty'] = 'Le nom de la liste est vide.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Nom de domaine invalide.';
 $wb['email_in_use_txt'] = 'L’email est en cours d’utilisation';
 $wb['no_domain_perm'] = 'Vous n’avez pas la permission pour ce domain.';
diff --git a/interface/web/mail/lib/lang/hr_mail_mailinglist.lng b/interface/web/mail/lib/lang/hr_mail_mailinglist.lng
index 04d3095e72343be61389646cdfe6f48f23fb031e..b8759689d893a55c3881b01ec8b6ec06a757763b 100644
--- a/interface/web/mail/lib/lang/hr_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/hr_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Iskorišten je maksimalan broj email lista.';
 $wb['domain_error_empty'] = 'Domena je prazna.';
 $wb['listname_error_empty'] = 'Naziv liste je prazan.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Neispravan naziv domene.';
 $wb['email_in_use_txt'] = 'Email je u upotrebi';
 $wb['no_domain_perm'] = 'Nemate dozvole za ovu domenu.';
diff --git a/interface/web/mail/lib/lang/hu_mail_mailinglist.lng b/interface/web/mail/lib/lang/hu_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..4b11277e1f240e04267b90287198950e7f28de50 100644
--- a/interface/web/mail/lib/lang/hu_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/hu_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
diff --git a/interface/web/mail/lib/lang/id_mail_mailinglist.lng b/interface/web/mail/lib/lang/id_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..4b11277e1f240e04267b90287198950e7f28de50 100644
--- a/interface/web/mail/lib/lang/id_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/id_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
diff --git a/interface/web/mail/lib/lang/it_mail_mailinglist.lng b/interface/web/mail/lib/lang/it_mail_mailinglist.lng
index 37835237d865b5ab075906add885fa92dcecacba..d57101fcd4b17a29237295e1404cbbe3ef616835 100644
--- a/interface/web/mail/lib/lang/it_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/it_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limite raggiunto';
 $wb['domain_error_empty'] = 'Dominio vuoto.';
 $wb['listname_error_empty'] = 'Listname vuoto.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Nome dominio non valido.';
 $wb['email_in_use_txt'] = 'Email è già in uso';
 $wb['no_domain_perm'] = 'Non hai i diritti per questo dominio.';
diff --git a/interface/web/mail/lib/lang/ja_mail_mailinglist.lng b/interface/web/mail/lib/lang/ja_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..4b11277e1f240e04267b90287198950e7f28de50 100644
--- a/interface/web/mail/lib/lang/ja_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/ja_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
diff --git a/interface/web/mail/lib/lang/nl_mail_mailinglist.lng b/interface/web/mail/lib/lang/nl_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..4b11277e1f240e04267b90287198950e7f28de50 100644
--- a/interface/web/mail/lib/lang/nl_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/nl_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Invalid domain name.';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
diff --git a/interface/web/mail/lib/lang/pl_mail_mailinglist.lng b/interface/web/mail/lib/lang/pl_mail_mailinglist.lng
index f285b1eaea9164178d4092601d30d4390f27abd2..b6a7a6c693e397d219a99f526446cb80abb8a9c5 100644
--- a/interface/web/mail/lib/lang/pl_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/pl_mail_mailinglist.lng
@@ -2,6 +2,7 @@
 $wb['limit_mailmailinglist_txt'] = 'Limit przekroczony';
 $wb['domain_error_empty'] = 'Domena jest pusta.';
 $wb['listname_error_empty'] = 'Nazwa listy jest pusta.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Nieprawidłowa nazwa domeny.';
 $wb['email_in_use_txt'] = 'Email jest już w użyciu';
 $wb['no_domain_perm'] = 'Nie masz uprawnień dla tej domeny.';
diff --git a/interface/web/mail/lib/lang/pt_mail_mailinglist.lng b/interface/web/mail/lib/lang/pt_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..60b64a89297b5a2db282dd72d4c9b2826b5c8dec 100644
--- a/interface/web/mail/lib/lang/pt_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/pt_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
 $wb['domain_error_regex'] = 'Invalid domain name.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
 $wb['password_strength_txt'] = 'Password strength';
diff --git a/interface/web/mail/lib/lang/ro_mail_mailinglist.lng b/interface/web/mail/lib/lang/ro_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..60b64a89297b5a2db282dd72d4c9b2826b5c8dec 100644
--- a/interface/web/mail/lib/lang/ro_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/ro_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
 $wb['domain_error_regex'] = 'Invalid domain name.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
 $wb['password_strength_txt'] = 'Password strength';
diff --git a/interface/web/mail/lib/lang/ru_mail_mailinglist.lng b/interface/web/mail/lib/lang/ru_mail_mailinglist.lng
index 30b78ff3cd6f5e63a01b8228b73853d3c22237d8..b615dfef05c8f6e5c546186755cb716e7619b4ff 100644
--- a/interface/web/mail/lib/lang/ru_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/ru_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['limit_mailmailinglist_txt'] = 'Лимит достигнут';
 $wb['domain_error_empty'] = 'Домен пустой.';
 $wb['listname_error_empty'] = 'Имя списка пустое.';
 $wb['domain_error_regex'] = 'Некорректное имя домена.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['email_in_use_txt'] = 'Этот адрес эл. почты уже используется';
 $wb['no_domain_perm'] = 'У вас нет прав доступа к этому домену.';
 $wb['password_strength_txt'] = 'Стойкость пароля';
diff --git a/interface/web/mail/lib/lang/se_mail_mailinglist.lng b/interface/web/mail/lib/lang/se_mail_mailinglist.lng
index ef65e449dd9ff200a8c0fa09da77f47757fbc8c2..a32e1935f09a90568c5ff1e4594cdaeb26629c2e 100644
--- a/interface/web/mail/lib/lang/se_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/se_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['limit_mailmailinglist_txt'] = 'Gränsen nådd';
 $wb['domain_error_empty'] = 'Domänfältet är tomt.';
 $wb['listname_error_empty'] = 'Listnamnfältet är tomt.';
 $wb['domain_error_regex'] = 'Ogiltigt domännamn.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['email_in_use_txt'] = 'Epostadressen används redan';
 $wb['no_domain_perm'] = 'Du har inte rättigheter för denna domän.';
 $wb['password_strength_txt'] = 'Lösenordsstyrka';
diff --git a/interface/web/mail/lib/lang/sk_mail_mailinglist.lng b/interface/web/mail/lib/lang/sk_mail_mailinglist.lng
index 5e16270b9c996ddc5ad888c4ddac693c924fe1fc..60b64a89297b5a2db282dd72d4c9b2826b5c8dec 100644
--- a/interface/web/mail/lib/lang/sk_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/sk_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['limit_mailmailinglist_txt'] = 'Limit reached';
 $wb['domain_error_empty'] = 'Domain is empty.';
 $wb['listname_error_empty'] = 'Listname is empty.';
 $wb['domain_error_regex'] = 'Invalid domain name.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['email_in_use_txt'] = 'Email is in use';
 $wb['no_domain_perm'] = 'You have no permission for this domain.';
 $wb['password_strength_txt'] = 'Password strength';
diff --git a/interface/web/mail/lib/lang/tr_mail_mailinglist.lng b/interface/web/mail/lib/lang/tr_mail_mailinglist.lng
index 4bd52db75e65b96c2fa8320e8408ee60e215e288..7c701b14db6b8afe4393a4d793063fe3936e29ee 100644
--- a/interface/web/mail/lib/lang/tr_mail_mailinglist.lng
+++ b/interface/web/mail/lib/lang/tr_mail_mailinglist.lng
@@ -3,6 +3,7 @@ $wb['mailinglist_txt'] = 'E-posta Listesi';
 $wb['limit_mailmailinglist_txt'] = 'Sınıra ulaşıldı';
 $wb['domain_error_empty'] = 'Etki alanı boş olamaz.';
 $wb['listname_error_empty'] = 'Liste adı boş olamaz.';
+$wb['listname_error_regex'] = 'The list name is invalid. The minimum length is 2 characters (allowed are: [a-z 1-9 - _]).';
 $wb['domain_error_regex'] = 'Etki alanı geçersiz.';
 $wb['email_in_use_txt'] = 'E-posta kullanımda';
 $wb['no_domain_perm'] = 'Bu etki alanı için izniniz yok.';