In case, like me, you’re having trouble enabling the newly supported ‘Greylisting’ feature after upgrading Plesk to 9.2.1, I managed to find the solution. Every time I tried to enable Greylisting I got Failed to exec glmng cli. file does not exist or is not executable: / usr / local / psa / admin /… Continue reading Plesk 9.2.1 Greylisting