Fixed: FS#850 - Unlimitred mailbox quota when value = 0

interface/web/mail/form/mail_user.tform.php

@@ -93,6 +93,9 @@ $form["tabs"]['mailuser'] = array (
 			'formtype'	=> 'TEXT',
 			'validators'	=> array ( 	0 => array (	'type'	=> 'ISINT',
 														'errmsg'=> 'quota_error_isint'),
+										1 => array (	'type'	=> 'REGEX',
+														'regex' => '/^(-1)|([1-9][0-9]*)$/',
+														'errmsg'=> 'quota_error_value'),
 									),
 			'default'	=> '0',
 			'value'		=> '',

interface/web/mail/lib/lang/en_mail_user.lng

@@ -28,4 +28,5 @@ $wb["welcome_mail_message"] = "Welcome to your new email account. Your webmaster
 $wb["disableimap_txt"] = 'Disable IMAP';
 $wb["disablepop3_txt"] = 'Disable POP3';
 $wb["duplicate_alias_or_forward_txt"] = 'There is already an alias or forwrd with this email address.';
+$wb["quota_error_value"] = 'Invalid quota value. Allowed values are: -1 for unlimited or numbers > 1';
 ?>