Hi, Atle Samuelsen wrote: Here this problem also appears, but rather seldom... then you've to wait some minutes until SER writes "removing spare zombie" IIRC (I'm not sure) into it's logs before you can successfully retry again. It happens when I remove the alias via the fifo and then add it again. My current workaround is storing aliases also in a backup table and periodically check inconsistencies between the alias table and the backup table, because aliases are added via web interface (uses fifo commands) by our ccare-guys who don't check if it's really correctly written (since the fifo returns OK). Andy