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-rw-r--r--program/steps/mail/func.inc2
1 files changed, 1 insertions, 1 deletions
diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index 39551c1c0..be5c26142 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -46,7 +46,7 @@ if (!in_array($RCMAIL->action, $NOIMAP_ACTIONS) && !$RCMAIL->imap_connect()) {
}
// set imap properties and session vars
-if ($mbox = get_input_value('_mbox', RCUBE_INPUT_GPC))
+if (strlen(trim($mbox = get_input_value('_mbox', RCUBE_INPUT_GPC))))
$IMAP->set_mailbox(($_SESSION['mbox'] = $mbox));
else if ($IMAP)
$_SESSION['mbox'] = $IMAP->get_mailbox_name();