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.';