diff --git a/libksieve/ksieveui/vacation/vacationeditwidget.cpp b/libksieve/ksieveui/vacation/vacationeditwidget.cpp
--- a/libksieve/ksieveui/vacation/vacationeditwidget.cpp
+++ b/libksieve/ksieveui/vacation/vacationeditwidget.cpp
@@ -107,7 +107,7 @@
     // "Resent only after" spinbox and label:
     ++row;
     int defDayInterval = 7; //default day interval
-    mIntervalSpin = new KIntSpinBox( 1, 356, 1, defDayInterval, this );
+    mIntervalSpin = new KIntSpinBox( 0, 356, 1, defDayInterval, this );
     mIntervalSpin->setObjectName( QLatin1String("mIntervalSpin") );
     mIntervalSpin->setSuffix( i18np(" day", " days", defDayInterval) );
     connect(mIntervalSpin, SIGNAL(valueChanged(int)), SLOT(slotIntervalSpinChanged(int)) );